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Full vulnerability report · 2025
CVE-2025-21707High confidence

mptcp: consolidate suboption status

Linux · Linux

9.8CriticalCVSS 3.1
Recommended action
Within 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

19 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivelinuxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-awsAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azureAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcpAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeopAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-ibmAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-tegraAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oem-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oracleAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspiAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-riscvAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-xilinxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SSA-019113 · CSAF 2.0 · revision 2 · interimSiemens ProductCERTSSA-019113: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.6
5 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= V3.1.6
  • SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= V3.1.6
Summary
In the Linux kernel, the following vulnerability has been resolved: mptcp: consolidate suboption status MPTCP maintains the received sub-options status is the bitmask carrying the received suboptions and in several bitfields carrying per suboption additional info. Zeroing the bitmask before parsing is not enough to ensure a consistent status, and the MPTCP code has to additionally clear some bitfiled depending on the actually parsed suboption. The above schema is fragile, and syzbot managed to trigger a path where a relevant bitfield is not cleared/initialized: BUG: KMSAN: uninit-value in __mptcp_expand_seq net/mptcp/options.c:1030 [inline] BUG: KMSAN: uninit-value in mptcp_expand_seq net/mptcp/protocol.h:864 [inline] BUG: KMSAN: uninit-value in ack_update_msk net/mptcp/options.c:1060 [inline] BUG: KMSAN: uninit-value in mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 __mptcp_expand_seq net/mptcp/options.c:1030 [inline] mptcp_expand_seq net/mptcp/protocol.h:864 [inline] ack_update_msk net/mptcp/options.c:1060 [inline] mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 tcp_data_queue+0xb4/0x7be0 net/ipv4/tcp_input.c:5233 tcp_rcv_established+0x1061/0x2510 net/ipv4/tcp_input.c:6264 tcp_v4_do_rcv+0x7f3/0x11a0 net/ipv4/tcp_ipv4.c:1916 tcp_v4_rcv+0x51df/0x5750 net/ipv4/tcp_ipv4.c:2351 ip_protocol_deliver_rcu+0x2a3/0x13d0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:314 [inline] ip_local_deliver+0x21f/0x490 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:460 [inline] ip_rcv_finish+0x4a2/0x520 net/ipv4/ip_input.c:447 NF_HOOK include/linux/netfilter.h:314 [inline] ip_rcv+0xcd/0x380 net/ipv4/ip_input.c:567 __netif_receive_skb_one_core net/core/dev.c:5704 [inline] __netif_receive_skb+0x319/0xa00 net/core/dev.c:5817 process_backlog+0x4ad/0xa50 net/core/dev.c:6149 __napi_poll+0xe7/0x980 net/core/dev.c:6902 napi_poll net/core/dev.c:6971 [inline] net_rx_action+0xa5a/0x19b0 net/core/dev.c:7093 handle_softirqs+0x1a0/0x7c0 kernel/softirq.c:561 __do_softirq+0x14/0x1a kernel/softirq.c:595 do_softirq+0x9a/0x100 kernel/softirq.c:462 __local_bh_enable_ip+0x9f/0xb0 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] __dev_queue_xmit+0x2758/0x57d0 net/core/dev.c:4493 dev_queue_xmit include/linux/netdevice.h:3168 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip_finish_output2+0x187c/0x1b70 net/ipv4/ip_output.c:236 __ip_finish_output+0x287/0x810 ip_finish_output+0x4b/0x600 net/ipv4/ip_output.c:324 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip_output+0x15f/0x3f0 net/ipv4/ip_output.c:434 dst_output include/net/dst.h:450 [inline] ip_local_out net/ipv4/ip_output.c:130 [inline] __ip_queue_xmit+0x1f2a/0x20d0 net/ipv4/ip_output.c:536 ip_queue_xmit+0x60/0x80 net/ipv4/ip_output.c:550 __tcp_transmit_skb+0x3cea/0x4900 net/ipv4/tcp_output.c:1468 tcp_transmit_skb net/ipv4/tcp_output.c:1486 [inline] tcp_write_xmit+0x3b90/0x9070 net/ipv4/tcp_output.c:2829 __tcp_push_pending_frames+0xc4/0x380 net/ipv4/tcp_output.c:3012 tcp_send_fin+0x9f6/0xf50 net/ipv4/tcp_output.c:3618 __tcp_close+0x140c/0x1550 net/ipv4/tcp.c:3130 __mptcp_close_ssk+0x74e/0x16f0 net/mptcp/protocol.c:2496 mptcp_close_ssk+0x26b/0x2c0 net/mptcp/protocol.c:2550 mptcp_pm_nl_rm_addr_or_subflow+0x635/0xd10 net/mptcp/pm_netlink.c:889 mptcp_pm_nl_rm_subflow_received net/mptcp/pm_netlink.c:924 [inline] mptcp_pm_flush_addrs_and_subflows net/mptcp/pm_netlink.c:1688 [inline] mptcp_nl_flush_addrs_list net/mptcp/pm_netlink.c:1709 [inline] mptcp_pm_nl_flush_addrs_doit+0xe10/0x1630 net/mptcp/pm_netlink.c:1750 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] ---truncated---
Remediation
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2025-5243

No EUVD known-exploited evidence

In the Linux kernel, the following vulnerability has been resolved: mptcp: consolidate suboption status MPTCP maintains the received sub-options status is the bitmask carrying the received suboptions and in several bitfields carrying per suboption additional info. Zeroing the bitmask before parsing is not enough to ensure a consistent status, and the MPTCP code has to additionally clear some bitfiled depending on the actually parsed suboption. The above schema is fragile, and syzbot managed to trigger a path where a relevant bitfield is not cleared/initialized: BUG: KMSAN: uninit-value in __mptcp_expand_seq net/mptcp/options.c:1030 [inline] BUG: KMSAN: uninit-value in mptcp_expand_seq net/mptcp/protocol.h:864 [inline] BUG: KMSAN: uninit-value in ack_update_msk net/mptcp/options.c:1060 [inline] BUG: KMSAN: uninit-value in mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 __mptcp_expand_seq net/mptcp/options.c:1030 [inline] mptcp_expand_seq net/mptcp/protocol.h:864 [inline] ack_update_msk net/mptcp/options.c:1060 [inline] mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 tcp_data_queue+0xb4/0x7be0 net/ipv4/tcp_input.c:5233 tcp_rcv_established+0x1061/0x2510 net/ipv4/tcp_input.c:6264 tcp_v4_do_rcv+0x7f3/0x11a0 net/ipv4/tcp_ipv4.c:1916 tcp_v4_rcv+0x51df/0x5750 net/ipv4/tcp_ipv4.c:2351 ip_protocol_deliver_rcu+0x2a3/0x13d0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:314 [inline] ip_local_deliver+0x21f/0x490 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:460 [inline] ip_rcv_finish+0x4a2/0x520 net/ipv4/ip_input.c:447 NF_HOOK include/linux/netfilter.h:314 [inline] ip_rcv+0xcd/0x380 net/ipv4/ip_input.c:567 __netif_receive_skb_one_core net/core/dev.c:5704 [inline] __netif_receive_skb+0x319/0xa00 net/core/dev.c:5817 process_backlog+0x4ad/0xa50 net/core/dev.c:6149 __napi_poll+0xe7/0x980 net/core/dev.c:6902 napi_poll net/core/dev.c:6971 [inline] net_rx_action+0xa5a/0x19b0 net/core/dev.c:7093 handle_softirqs+0x1a0/0x7c0 kernel/softirq.c:561 __do_softirq+0x14/0x1a kernel/softirq.c:595 do_softirq+0x9a/0x100 kernel/softirq.c:462 __local_bh_enable_ip+0x9f/0xb0 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] __dev_queue_xmit+0x2758/0x57d0 net/core/dev.c:4493 dev_queue_xmit include/linux/netdevice.h:3168 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip_finish_output2+0x187c/0x1b70 net/ipv4/ip_output.c:236 __ip_finish_output+0x287/0x810 ip_finish_output+0x4b/0x600 net/ipv4/ip_output.c:324 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip_output+0x15f/0x3f0 net/ipv4/ip_output.c:434 dst_output include/net/dst.h:450 [inline] ip_local_out net/ipv4/ip_output.c:130 [inline] __ip_queue_xmit+0x1f2a/0x20d0 net/ipv4/ip_output.c:536 ip_queue_xmit+0x60/0x80 net/ipv4/ip_output.c:550 __tcp_transmit_skb+0x3cea/0x4900 net/ipv4/tcp_output.c:1468 tcp_transmit_skb net/ipv4/tcp_output.c:1486 [inline] tcp_write_xmit+0x3b90/0x9070 net/ipv4/tcp_output.c:2829 __tcp_push_pending_frames+0xc4/0x380 net/ipv4/tcp_output.c:3012 tcp_send_fin+0x9f6/0xf50 net/ipv4/tcp_output.c:3618 __tcp_close+0x140c/0x1550 net/ipv4/tcp.c:3130 __mptcp_close_ssk+0x74e/0x16f0 net/mptcp/protocol.c:2496 mptcp_close_ssk+0x26b/0x2c0 net/mptcp/protocol.c:2550 mptcp_pm_nl_rm_addr_or_subflow+0x635/0xd10 net/mptcp/pm_netlink.c:889 mptcp_pm_nl_rm_subflow_received net/mptcp/pm_netlink.c:924 [inline] mptcp_pm_flush_addrs_and_subflows net/mptcp/pm_netlink.c:1688 [inline] mptcp_nl_flush_addrs_list net/mptcp/pm_netlink.c:1709 [inline] mptcp_pm_nl_flush_addrs_doit+0xe10/0x1630 net/mptcp/pm_netlink.c:1750 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] ---truncated---

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
9.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: mptcp: consolidate suboption status MPTCP maintains the received sub-options status is the bitmask carrying the received suboptions and in several bitfields carrying per suboption additional info. Zeroing the bitmask before parsing is not enough to ensure a consistent status, and the MPTCP code has to additionally clear some bitfiled depending on the actually parsed suboption. The above schema is fragile, and syzbot managed to trigger a path where a relevant bitfield is not cleared/initialized: BUG: KMSAN: uninit-value in __mptcp_expand_seq net/mptcp/options.c:1030 [inline] BUG: KMSAN: uninit-value in mptcp_expand_seq net/mptcp/protocol.h:864 [inline] BUG: KMSAN: uninit-value in ack_update_msk net/mptcp/options.c:1060 [inline] BUG: KMSAN: uninit-value in mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 __mptcp_expand_seq net/mptcp/options.c:1030 [inline] mptcp_expand_seq net/mptcp/protocol.h:864 [inline] ack_update_msk net/mptcp/options.c:1060 [inline] mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 tcp_data_queue+0xb4/0x7be0 net/ipv4/tcp_input.c:5233 tcp_rcv_established+0x1061/0x2510 net/ipv4/tcp_input.c:6264 tcp_v4_do_rcv+0x7f3/0x11a0 net/ipv4/tcp_ipv4.c:1916 tcp_v4_rcv+0x51df/0x5750 net/ipv4/tcp_ipv4.c:2351 ip_protocol_deliver_rcu+0x2a3/0x13d0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:314 [inline] ip_local_deliver+0x21f/0x490 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:460 [inline] ip_rcv_finish+0x4a2/0x520 net/ipv4/ip_input.c:447 NF_HOOK include/linux/netfilter.h:314 [inline] ip_rcv+0xcd/0x380 net/ipv4/ip_input.c:567 __netif_receive_skb_one_core net/core/dev.c:5704 [inline] __netif_receive_skb+0x319/0xa00 net/core/dev.c:5817 process_backlog+0x4ad/0xa50 net/core/dev.c:6149 __napi_poll+0xe7/0x980 net/core/dev.c:6902 napi_poll net/core/dev.c:6971 [inline] net_rx_action+0xa5a/0x19b0 net/core/dev.c:7093 handle_softirqs+0x1a0/0x7c0 kernel/softirq.c:561 __do_softirq+0x14/0x1a kernel/softirq.c:595 do_softirq+0x9a/0x100 kernel/softirq.c:462 __local_bh_enable_ip+0x9f/0xb0 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] __dev_queue_xmit+0x2758/0x57d0 net/core/dev.c:4493 dev_queue_xmit include/linux/netdevice.h:3168 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip_finish_output2+0x187c/0x1b70 net/ipv4/ip_output.c:236 __ip_finish_output+0x287/0x810 ip_finish_output+0x4b/0x600 net/ipv4/ip_output.c:324 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip_output+0x15f/0x3f0 net/ipv4/ip_output.c:434 dst_output include/net/dst.h:450 [inline] ip_local_out net/ipv4/ip_output.c:130 [inline] __ip_queue_xmit+0x1f2a/0x20d0 net/ipv4/ip_output.c:536 ip_queue_xmit+0x60/0x80 net/ipv4/ip_output.c:550 __tcp_transmit_skb+0x3cea/0x4900 net/ipv4/tcp_output.c:1468 tcp_transmit_skb net/ipv4/tcp_output.c:1486 [inline] tcp_write_xmit+0x3b90/0x9070 net/ipv4/tcp_output.c:2829 __tcp_push_pending_frames+0xc4/0x380 net/ipv4/tcp_output.c:3012 tcp_send_fin+0x9f6/0xf50 net/ipv4/tcp_output.c:3618 __tcp_close+0x140c/0x1550 net/ipv4/tcp.c:3130 __mptcp_close_ssk+0x74e/0x16f0 net/mptcp/protocol.c:2496 mptcp_close_ssk+0x26b/0x2c0 net/mptcp/protocol.c:2550 mptcp_pm_nl_rm_addr_or_subflow+0x635/0xd10 net/mptcp/pm_netlink.c:889 mptcp_pm_nl_rm_subflow_received net/mptcp/pm_netlink.c:924 [inline] mptcp_pm_flush_addrs_and_subflows net/mptcp/pm_netlink.c:1688 [inline] mptcp_nl_flush_addrs_list net/mptcp/pm_netlink.c:1709 [inline] mptcp_pm_nl_flush_addrs_doit+0xe10/0x1630 net/mptcp/pm_netlink.c:1750 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] ---truncated---

What

In the Linux kernel, the following vulnerability has been resolved: mptcp: consolidate suboption status MPTCP maintains the received sub-options status is the bitmask carrying the received suboptions and in several bitfields carrying per suboption additional info. Zeroing the bitmask before parsing is not enough to ensure a consistent status, and the MPTCP code has to additionally clear some bitfiled depending on the actually parsed suboption. The above schema is fragile, and syzbot managed to trigger a path where a relevant bitfield is not cleared/initialized: BUG: KMSAN: uninit-value in __mptcp_expand_seq net/mptcp/options.c:1030 [inline] BUG: KMSAN: uninit-value in mptcp_expand_seq net/mptcp/protocol.h:864 [inline] BUG: KMSAN: uninit-value in ack_update_msk net/mptcp/options.c:1060 [inline] BUG: KMSAN: uninit-value in mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 __mptcp_expand_seq net/mptcp/options.c:1030 [inline] mptcp_expand_seq net/mptcp/protocol.h:864 [inline] ack_update_msk net/mptcp/options.c:1060 [inline] mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 tcp_data_queue+0xb4/0x7be0 net/ipv4/tcp_input.c:5233 tcp_rcv_established+0x1061/0x2510 net/ipv4/tcp_input.c:6264 tcp_v4_do_rcv+0x7f3/0x11a0 net/ipv4/tcp_ipv4.c:1916 tcp_v4_rcv+0x51df/0x5750 net/ipv4/tcp_ipv4.c:2351 ip_protocol_deliver_rcu+0x2a3/0x13d0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:314 [inline] ip_local_deliver+0x21f/0x490 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:460 [inline] ip_rcv_finish+0x4a2/0x520 net/ipv4/ip_input.c:447 NF_HOOK include/linux/netfilter.h:314 [inline] ip_rcv+0xcd/0x380 net/ipv4/ip_input.c:567 __netif_receive_skb_one_core net/core/dev.c:5704 [inline] __netif_receive_skb+0x319/0xa00 net/core/dev.c:5817 process_backlog+0x4ad/0xa50 net/core/dev.c:6149 __napi_poll+0xe7/0x980 net/core/dev.c:6902 napi_poll net/core/dev.c:6971 [inline] net_rx_action+0xa5a/0x19b0 net/core/dev.c:7093 handle_softirqs+0x1a0/0x7c0 kernel/softirq.c:561 __do_softirq+0x14/0x1a kernel/softirq.c:595 do_softirq+0x9a/0x100 kernel/softirq.c:462 __local_bh_enable_ip+0x9f/0xb0 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] __dev_queue_xmit+0x2758/0x57d0 net/core/dev.c:4493 dev_queue_xmit include/linux/netdevice.h:3168 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip_finish_output2+0x187c/0x1b70 net/ipv4/ip_output.c:236 __ip_finish_output+0x287/0x810 ip_finish_output+0x4b/0x600 net/ipv4/ip_output.c:324 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip_output+0x15f/0x3f0 net/ipv4/ip_output.c:434 dst_output include/net/dst.h:450 [inline] ip_local_out net/ipv4/ip_output.c:130 [inline] __ip_queue_xmit+0x1f2a/0x20d0 net/ipv4/ip_output.c:536 ip_queue_xmit+0x60/0x80 net/ipv4/ip_output.c:550 __tcp_transmit_skb+0x3cea/0x4900 net/ipv4/tcp_output.c:1468 tcp_transmit_skb net/ipv4/tcp_output.c:1486 [inline] tcp_write_xmit+0x3b90/0x9070 net/ipv4/tcp_output.c:2829 __tcp_push_pending_frames+0xc4/0x380 net/ipv4/tcp_output.c:3012 tcp_send_fin+0x9f6/0xf50 net/ipv4/tcp_output.c:3618 __tcp_close+0x140c/0x1550 net/ipv4/tcp.c:3130 __mptcp_close_ssk+0x74e/0x16f0 net/mptcp/protocol.c:2496 mptcp_close_ssk+0x26b/0x2c0 net/mptcp/protocol.c:2550 mptcp_pm_nl_rm_addr_or_subflow+0x635/0xd10 net/mptcp/pm_netlink.c:889 mptcp_pm_nl_rm_subflow_received net/mptcp/pm_netlink.c:924 [inline] mptcp_pm_flush_addrs_and_subflows net/mptcp/pm_netlink.c:1688 [inline] mptcp_nl_flush_addrs_list net/mptcp/pm_netlink.c:1709 [inline] mptcp_pm_nl_flush_addrs_doit+0xe10/0x1630 net/mptcp/pm_netlink.c:1750 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] ---truncated---

Why

The product uses or accesses a resource that has not been initialized.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel, the following vulnerability has been resolved: mptcp: consolidate suboption status MPTCP maintains the received sub-options status is the bitmask carrying the received suboptions and in several bitfields carrying per suboption additional info. Zeroing the bitmask before parsing is not enough to ensure a consistent status, and the MPTCP code has to additionally clear some bitfiled depending on the actually parsed suboption. The above schema is fragile, and syzbot managed to trigger a path where a relevant bitfield is not cleared/initialized: BUG: KMSAN: uninit-value in __mptcp_expand_seq net/mptcp/options.c:1030 [inline] BUG: KMSAN: uninit-value in mptcp_expand_seq net/mptcp/protocol.h:864 [inline] BUG: KMSAN: uninit-value in ack_update_msk net/mptcp/options.c:1060 [inline] BUG: KMSAN: uninit-value in mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 __mptcp_expand_seq net/mptcp/options.c:1030 [inline] mptcp_expand_seq net/mptcp/protocol.h:864 [inline] ack_update_msk net/mptcp/options.c:1060 [inline] mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 tcp_data_queue+0xb4/0x7be0 net/ipv4/tcp_input.c:5233 tcp_rcv_established+0x1061/0x2510 net/ipv4/tcp_input.c:6264 tcp_v4_do_rcv+0x7f3/0x11a0 net/ipv4/tcp_ipv4.c:1916 tcp_v4_rcv+0x51df/0x5750 net/ipv4/tcp_ipv4.c:2351 ip_protocol_deliver_rcu+0x2a3/0x13d0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:314 [inline] ip_local_deliver+0x21f/0x490 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:460 [inline] ip_rcv_finish+0x4a2/0x520 net/ipv4/ip_input.c:447 NF_HOOK include/linux/netfilter.h:314 [inline] ip_rcv+0xcd/0x380 net/ipv4/ip_input.c:567 __netif_receive_skb_one_core net/core/dev.c:5704 [inline] __netif_receive_skb+0x319/0xa00 net/core/dev.c:5817 process_backlog+0x4ad/0xa50 net/core/dev.c:6149 __napi_poll+0xe7/0x980 net/core/dev.c:6902 napi_poll net/core/dev.c:6971 [inline] net_rx_action+0xa5a/0x19b0 net/core/dev.c:7093 handle_softirqs+0x1a0/0x7c0 kernel/softirq.c:561 __do_softirq+0x14/0x1a kernel/softirq.c:595 do_softirq+0x9a/0x100 kernel/softirq.c:462 __local_bh_enable_ip+0x9f/0xb0 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] __dev_queue_xmit+0x2758/0x57d0 net/core/dev.c:4493 dev_queue_xmit include/linux/netdevice.h:3168 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip_finish_output2+0x187c/0x1b70 net/ipv4/ip_output.c:236 __ip_finish_output+0x287/0x810 ip_finish_output+0x4b/0x600 net/ipv4/ip_output.c:324 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip_output+0x15f/0x3f0 net/ipv4/ip_output.c:434 dst_output include/net/dst.h:450 [inline] ip_local_out net/ipv4/ip_output.c:130 [inline] __ip_queue_xmit+0x1f2a/0x20d0 net/ipv4/ip_output.c:536 ip_queue_xmit+0x60/0x80 net/ipv4/ip_output.c:550 __tcp_transmit_skb+0x3cea/0x4900 net/ipv4/tcp_output.c:1468 tcp_transmit_skb net/ipv4/tcp_output.c:1486 [inline] tcp_write_xmit+0x3b90/0x9070 net/ipv4/tcp_output.c:2829 __tcp_push_pending_frames+0xc4/0x380 net/ipv4/tcp_output.c:3012 tcp_send_fin+0x9f6/0xf50 net/ipv4/tcp_output.c:3618 __tcp_close+0x140c/0x1550 net/ipv4/tcp.c:3130 __mptcp_close_ssk+0x74e/0x16f0 net/mptcp/protocol.c:2496 mptcp_close_ssk+0x26b/0x2c0 net/mptcp/protocol.c:2550 mptcp_pm_nl_rm_addr_or_subflow+0x635/0xd10 net/mptcp/pm_netlink.c:889 mptcp_pm_nl_rm_subflow_received net/mptcp/pm_netlink.c:924 [inline] mptcp_pm_flush_addrs_and_subflows net/mptcp/pm_netlink.c:1688 [inline] mptcp_nl_flush_addrs_list net/mptcp/pm_netlink.c:1709 [inline] mptcp_pm_nl_flush_addrs_doit+0xe10/0x1630 net/mptcp/pm_netlink.c:1750 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] ---truncated---

Why

The product uses or accesses a resource that has not been initialized.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Use of Uninitialized Resource → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-908 ↗

CWE-908: Use of Uninitialized Resource. The product uses or accesses a resource that has not been initialized.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-908
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2025-5243Official EUVD mapping

In the Linux kernel, the following vulnerability has been resolved: mptcp: consolidate suboption status MPTCP maintains the received sub-options status is the bitmask carrying the received suboptions and in several bitfields carrying per suboption additional info. Zeroing the bitmask before parsing is not enough to ensure a consistent status, and the MPTCP code has to additionally clear some bitfiled depending on the actually parsed suboption. The above schema is fragile, and syzbot managed to trigger a path where a relevant bitfield is not cleared/initialized: BUG: KMSAN: uninit-value in __mptcp_expand_seq net/mptcp/options.c:1030 [inline] BUG: KMSAN: uninit-value in mptcp_expand_seq net/mptcp/protocol.h:864 [inline] BUG: KMSAN: uninit-value in ack_update_msk net/mptcp/options.c:1060 [inline] BUG: KMSAN: uninit-value in mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 __mptcp_expand_seq net/mptcp/options.c:1030 [inline] mptcp_expand_seq net/mptcp/protocol.h:864 [inline] ack_update_msk net/mptcp/options.c:1060 [inline] mptcp_incoming_options+0x2036/0x3d30 net/mptcp/options.c:1209 tcp_data_queue+0xb4/0x7be0 net/ipv4/tcp_input.c:5233 tcp_rcv_established+0x1061/0x2510 net/ipv4/tcp_input.c:6264 tcp_v4_do_rcv+0x7f3/0x11a0 net/ipv4/tcp_ipv4.c:1916 tcp_v4_rcv+0x51df/0x5750 net/ipv4/tcp_ipv4.c:2351 ip_protocol_deliver_rcu+0x2a3/0x13d0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:314 [inline] ip_local_deliver+0x21f/0x490 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:460 [inline] ip_rcv_finish+0x4a2/0x520 net/ipv4/ip_input.c:447 NF_HOOK include/linux/netfilter.h:314 [inline] ip_rcv+0xcd/0x380 net/ipv4/ip_input.c:567 __netif_receive_skb_one_core net/core/dev.c:5704 [inline] __netif_receive_skb+0x319/0xa00 net/core/dev.c:5817 process_backlog+0x4ad/0xa50 net/core/dev.c:6149 __napi_poll+0xe7/0x980 net/core/dev.c:6902 napi_poll net/core/dev.c:6971 [inline] net_rx_action+0xa5a/0x19b0 net/core/dev.c:7093 handle_softirqs+0x1a0/0x7c0 kernel/softirq.c:561 __do_softirq+0x14/0x1a kernel/softirq.c:595 do_softirq+0x9a/0x100 kernel/softirq.c:462 __local_bh_enable_ip+0x9f/0xb0 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] __dev_queue_xmit+0x2758/0x57d0 net/core/dev.c:4493 dev_queue_xmit include/linux/netdevice.h:3168 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip_finish_output2+0x187c/0x1b70 net/ipv4/ip_output.c:236 __ip_finish_output+0x287/0x810 ip_finish_output+0x4b/0x600 net/ipv4/ip_output.c:324 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip_output+0x15f/0x3f0 net/ipv4/ip_output.c:434 dst_output include/net/dst.h:450 [inline] ip_local_out net/ipv4/ip_output.c:130 [inline] __ip_queue_xmit+0x1f2a/0x20d0 net/ipv4/ip_output.c:536 ip_queue_xmit+0x60/0x80 net/ipv4/ip_output.c:550 __tcp_transmit_skb+0x3cea/0x4900 net/ipv4/tcp_output.c:1468 tcp_transmit_skb net/ipv4/tcp_output.c:1486 [inline] tcp_write_xmit+0x3b90/0x9070 net/ipv4/tcp_output.c:2829 __tcp_push_pending_frames+0xc4/0x380 net/ipv4/tcp_output.c:3012 tcp_send_fin+0x9f6/0xf50 net/ipv4/tcp_output.c:3618 __tcp_close+0x140c/0x1550 net/ipv4/tcp.c:3130 __mptcp_close_ssk+0x74e/0x16f0 net/mptcp/protocol.c:2496 mptcp_close_ssk+0x26b/0x2c0 net/mptcp/protocol.c:2550 mptcp_pm_nl_rm_addr_or_subflow+0x635/0xd10 net/mptcp/pm_netlink.c:889 mptcp_pm_nl_rm_subflow_received net/mptcp/pm_netlink.c:924 [inline] mptcp_pm_flush_addrs_and_subflows net/mptcp/pm_netlink.c:1688 [inline] mptcp_nl_flush_addrs_list net/mptcp/pm_netlink.c:1709 [inline] mptcp_pm_nl_flush_addrs_doit+0xe10/0x1630 net/mptcp/pm_netlink.c:1750 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] ---truncated---

Official EUVD record
BSI · German · WID-SEC-W-2025-0453Linux Kernel: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0880Multiples vulnérabilités dans les produits Siemens

24-27056, CVE-2024-28956, CVE-2024-36903, CVE-2024-36927, CVE-2024-42079, CVE-2024-46786, CVE-2024-47736, CVE-2024-47809, CVE-2024-49968, CVE-2024-49994, CVE-2024-49998, CVE-2024-50014, CVE-2024-50063, CVE-2024-50164, CVE-2024-50298, CVE-2024-53124, CVE-2024-53170, CVE-2024-54458, CVE-2024-56631, CVE-2024-56703, CVE-2024-56719, CVE-2024-57917, CVE-2024-57924, CVE-2024-57973, CVE-2024-57977, CVE-2024-57979, CVE-2024-58011, CVE-2024-58016, CVE-2024-58020, CVE-2024-58056, CVE-2024-58058, CVE-2024-58061, CVE-2024-58086, CVE-2025-21645, CVE-2025-21648, CVE-2025-21655, CVE-2025-21676, CVE-2025-21682, CVE-2025-21702, CVE-2025-21705, CVE-2025-21706, CVE-2025-21707, CVE-2025-21718, CVE-2025-21731, CVE-2025-21745, CVE-2025-21758, CVE-2025-21760, CVE-2025-21764, CVE-2025-21765, CVE-2025-21780, CVE-2025-21795, CVE-2025-21796, CVE-2025-21802, CVE-2025-21814, CVE-2025-21846, CVE-2025-21853, CVE-2025-21861, CVE-2025-21864, CVE-2025-21867, CVE-2025-21875, CVE-2025-21887, CVE-2025-21913, CVE-2025-21919, CVE-2025-21925, CVE-2025-21926, CVE-2025-21938, CVE-2025-21959, CVE-2025-21999, CVE-2025-22005, CVE-2025-22015, CVE-2025-22055, CVE-2025-22056, CVE-2025-22060, CVE-2025-22083, CVE-2025-22090, CVE-2025-22095, CVE-2025-22107, CVE-2025-22111, CVE-2025-22121, CVE-2025-23136, CVE-2025-23143, CVE-2025-37785, CVE-2025

Official advisory
CERT-FR · French · CERTFR-2025-AVI-1057Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-21668 Référence CVE CVE-2025-21670 https://www.cve.org/CVERecord?id=CVE-2025-21670 Référence CVE CVE-2025-21671 https://www.cve.org/CVERecord?id=CVE-2025-21671 Référence CVE CVE-2025-21673 https://www.cve.org/CVERecord?id=CVE-2025-21673 Référence CVE CVE-2025-21681 https://www.cve.org/CVERecord?id=CVE-2025-21681 Référence CVE CVE-2025-21691 https://www.cve.org/CVERecord?id=CVE-2025-21691 Référence CVE CVE-2025-21694 https://www.cve.org/CVERecord?id=CVE-2025-21694 Référence CVE CVE-2025-21705 https://www.cve.org/CVERecord?id=CVE-2025-21705 Référence CVE CVE-2025-21706 https://www.cve.org/CVERecord?id=CVE-2025-21706 Référence CVE CVE-2025-21707 https://www.cve.org/CVERecord?id=CVE-2025-21707 Référence CVE CVE-2025-21709 https://www.cve.org/CVERecord?id=CVE-2025-21709 Référence CVE CVE-2025-21713 https://www.cve.org/CVERecord?id=CVE-2025-21713 Référence CVE CVE-2025-21716 https://www.cve.org/CVERecord?id=CVE-2025-21716 Référence CVE CVE-2025-21723 https://www.cve.org/CVERecord?id=CVE-2025-21723 Référence CVE CVE-2025-21724 https://www.cve.org/CVERecord?id=CVE-2025-21724 Référence CVE CVE-2025-21725 https://www.cve.org/CVERecord?id=CVE-2025-21725 Référence CVE CVE-2025-21732 https://www.cve.org/CVERecord?id=CVE-2025-21732 Référence CVE CVE-2025-21770 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0969Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-21690 Référence CVE CVE-2025-21691 https://www.cve.org/CVERecord?id=CVE-2025-21691 Référence CVE CVE-2025-21692 https://www.cve.org/CVERecord?id=CVE-2025-21692 Référence CVE CVE-2025-21694 https://www.cve.org/CVERecord?id=CVE-2025-21694 Référence CVE CVE-2025-21697 https://www.cve.org/CVERecord?id=CVE-2025-21697 Référence CVE CVE-2025-21699 https://www.cve.org/CVERecord?id=CVE-2025-21699 Référence CVE CVE-2025-21704 https://www.cve.org/CVERecord?id=CVE-2025-21704 Référence CVE CVE-2025-21705 https://www.cve.org/CVERecord?id=CVE-2025-21705 Référence CVE CVE-2025-21706 https://www.cve.org/CVERecord?id=CVE-2025-21706 Référence CVE CVE-2025-21707 https://www.cve.org/CVERecord?id=CVE-2025-21707 Référence CVE CVE-2025-21708 https://www.cve.org/CVERecord?id=CVE-2025-21708 Référence CVE CVE-2025-21710 https://www.cve.org/CVERecord?id=CVE-2025-21710 Référence CVE CVE-2025-21711 https://www.cve.org/CVERecord?id=CVE-2025-21711 Référence CVE CVE-2025-21712 https://www.cve.org/CVERecord?id=CVE-2025-21712 Référence CVE CVE-2025-21714 https://www.cve.org/CVERecord?id=CVE-2025-21714 Référence CVE CVE-2025-21715 https://www.cve.org/CVERecord?id=CVE-2025-21715 Référence CVE CVE-2025-21716 https://www.cve.org/CVERecord?id=CVE-2025-21716 Référence CVE CVE-2025-21718 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0758Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2024-58082 Référence CVE CVE-2024-58083 https://www.cve.org/CVERecord?id=CVE-2024-58083 Référence CVE CVE-2024-58085 https://www.cve.org/CVERecord?id=CVE-2024-58085 Référence CVE CVE-2024-58086 https://www.cve.org/CVERecord?id=CVE-2024-58086 Référence CVE CVE-2024-58088 https://www.cve.org/CVERecord?id=CVE-2024-58088 Référence CVE CVE-2024-58093 https://www.cve.org/CVERecord?id=CVE-2024-58093 Référence CVE CVE-2025-21704 https://www.cve.org/CVERecord?id=CVE-2025-21704 Référence CVE CVE-2025-21705 https://www.cve.org/CVERecord?id=CVE-2025-21705 Référence CVE CVE-2025-21706 https://www.cve.org/CVERecord?id=CVE-2025-21706 Référence CVE CVE-2025-21707 https://www.cve.org/CVERecord?id=CVE-2025-21707 Référence CVE CVE-2025-21708 https://www.cve.org/CVERecord?id=CVE-2025-21708 Référence CVE CVE-2025-21710 https://www.cve.org/CVERecord?id=CVE-2025-21710 Référence CVE CVE-2025-21711 https://www.cve.org/CVERecord?id=CVE-2025-21711 Référence CVE CVE-2025-21712 https://www.cve.org/CVERecord?id=CVE-2025-21712 Référence CVE CVE-2025-21714 https://www.cve.org/CVERecord?id=CVE-2025-21714 Référence CVE CVE-2025-21715 https://www.cve.org/CVERecord?id=CVE-2025-21715 Référence CVE CVE-2025-21716 https://www.cve.org/CVERecord?id=CVE-2025-21716 Référence CVE CVE-2025-21718 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0625Multiples vulnérabilités dans le noyau Linux d'Ubuntu

ord?id=CVE-2024-58079 Référence CVE CVE-2024-58080 https://www.cve.org/CVERecord?id=CVE-2024-58080 Référence CVE CVE-2024-58081 https://www.cve.org/CVERecord?id=CVE-2024-58081 Référence CVE CVE-2024-58082 https://www.cve.org/CVERecord?id=CVE-2024-58082 Référence CVE CVE-2024-58083 https://www.cve.org/CVERecord?id=CVE-2024-58083 Référence CVE CVE-2024-58085 https://www.cve.org/CVERecord?id=CVE-2024-58085 Référence CVE CVE-2024-58093 https://www.cve.org/CVERecord?id=CVE-2024-58093 Référence CVE CVE-2024-8805 https://www.cve.org/CVERecord?id=CVE-2024-8805 Référence CVE CVE-2025-21705 https://www.cve.org/CVERecord?id=CVE-2025-21705 Référence CVE CVE-2025-21707 https://www.cve.org/CVERecord?id=CVE-2025-21707 Référence CVE CVE-2025-21708 https://www.cve.org/CVERecord?id=CVE-2025-21708 Référence CVE CVE-2025-21710 https://www.cve.org/CVERecord?id=CVE-2025-21710 Référence CVE CVE-2025-21711 https://www.cve.org/CVERecord?id=CVE-2025-21711 Référence CVE CVE-2025-21714 https://www.cve.org/CVERecord?id=CVE-2025-21714 Référence CVE CVE-2025-21715 https://www.cve.org/CVERecord?id=CVE-2025-21715 Référence CVE CVE-2025-21716 https://www.cve.org/CVERecord?id=CVE-2025-21716 Référence CVE CVE-2025-21718 https://www.cve.org/CVERecord?id=CVE-2025-21718 Référence CVE CVE-2025-21719 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0559Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-21684 Référence CVE CVE-2025-21689 https://www.cve.org/CVERecord?id=CVE-2025-21689 Référence CVE CVE-2025-21690 https://www.cve.org/CVERecord?id=CVE-2025-21690 Référence CVE CVE-2025-21691 https://www.cve.org/CVERecord?id=CVE-2025-21691 Référence CVE CVE-2025-21692 https://www.cve.org/CVERecord?id=CVE-2025-21692 Référence CVE CVE-2025-21694 https://www.cve.org/CVERecord?id=CVE-2025-21694 Référence CVE CVE-2025-21697 https://www.cve.org/CVERecord?id=CVE-2025-21697 Référence CVE CVE-2025-21699 https://www.cve.org/CVERecord?id=CVE-2025-21699 Référence CVE CVE-2025-21704 https://www.cve.org/CVERecord?id=CVE-2025-21704 Référence CVE CVE-2025-21707 https://www.cve.org/CVERecord?id=CVE-2025-21707 Référence CVE CVE-2025-21708 https://www.cve.org/CVERecord?id=CVE-2025-21708 Référence CVE CVE-2025-21711 https://www.cve.org/CVERecord?id=CVE-2025-21711 Référence CVE CVE-2025-21715 https://www.cve.org/CVERecord?id=CVE-2025-21715 Référence CVE CVE-2025-21718 https://www.cve.org/CVERecord?id=CVE-2025-21718 Référence CVE CVE-2025-21719 https://www.cve.org/CVERecord?id=CVE-2025-21719 Référence CVE CVE-2025-21721 https://www.cve.org/CVERecord?id=CVE-2025-21721 Référence CVE CVE-2025-21722 https://www.cve.org/CVERecord?id=CVE-2025-21722 Référence CVE CVE-2025-21726 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0529Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-21680 Référence CVE CVE-2025-21683 https://www.cve.org/CVERecord?id=CVE-2025-21683 Référence CVE CVE-2025-21693 https://www.cve.org/CVERecord?id=CVE-2025-21693 Référence CVE CVE-2025-21696 https://www.cve.org/CVERecord?id=CVE-2025-21696 Référence CVE CVE-2025-21701 https://www.cve.org/CVERecord?id=CVE-2025-21701 Référence CVE CVE-2025-21702 https://www.cve.org/CVERecord?id=CVE-2025-21702 Référence CVE CVE-2025-21703 https://www.cve.org/CVERecord?id=CVE-2025-21703 Référence CVE CVE-2025-21704 https://www.cve.org/CVERecord?id=CVE-2025-21704 Référence CVE CVE-2025-21706 https://www.cve.org/CVERecord?id=CVE-2025-21706 Référence CVE CVE-2025-21707 https://www.cve.org/CVERecord?id=CVE-2025-21707 Référence CVE CVE-2025-21717 https://www.cve.org/CVERecord?id=CVE-2025-21717 Référence CVE CVE-2025-21729 https://www.cve.org/CVERecord?id=CVE-2025-21729 Référence CVE CVE-2025-21739 https://www.cve.org/CVERecord?id=CVE-2025-21739 Référence CVE CVE-2025-21753 https://www.cve.org/CVERecord?id=CVE-2025-21753 Référence CVE CVE-2025-21755 https://www.cve.org/CVERecord?id=CVE-2025-21755 Référence CVE CVE-2025-21758 https://www.cve.org/CVERecord?id=CVE-2025-21758 Référence CVE CVE-2025-21759 https://www.cve.org/CVERecord?id=CVE-2025-21759 Référence CVE CVE-2025-21760 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0509Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-21683 Référence CVE CVE-2025-21693 https://www.cve.org/CVERecord?id=CVE-2025-21693 Référence CVE CVE-2025-21696 https://www.cve.org/CVERecord?id=CVE-2025-21696 Référence CVE CVE-2025-21701 https://www.cve.org/CVERecord?id=CVE-2025-21701 Référence CVE CVE-2025-21702 https://www.cve.org/CVERecord?id=CVE-2025-21702 Référence CVE CVE-2025-21703 https://www.cve.org/CVERecord?id=CVE-2025-21703 Référence CVE CVE-2025-21704 https://www.cve.org/CVERecord?id=CVE-2025-21704 Référence CVE CVE-2025-21705 https://www.cve.org/CVERecord?id=CVE-2025-21705 Référence CVE CVE-2025-21706 https://www.cve.org/CVERecord?id=CVE-2025-21706 Référence CVE CVE-2025-21707 https://www.cve.org/CVERecord?id=CVE-2025-21707 Référence CVE CVE-2025-21708 https://www.cve.org/CVERecord?id=CVE-2025-21708 Référence CVE CVE-2025-21711 https://www.cve.org/CVERecord?id=CVE-2025-21711 Référence CVE CVE-2025-21714 https://www.cve.org/CVERecord?id=CVE-2025-21714 Référence CVE CVE-2025-21715 https://www.cve.org/CVERecord?id=CVE-2025-21715 Référence CVE CVE-2025-21716 https://www.cve.org/CVERecord?id=CVE-2025-21716 Référence CVE CVE-2025-21718 https://www.cve.org/CVERecord?id=CVE-2025-21718 Référence CVE CVE-2025-21719 https://www.cve.org/CVERecord?id=CVE-2025-21719 Référence CVE CVE-2025-21723 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0482Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2024-58070 Référence CVE CVE-2024-58088 https://www.cve.org/CVERecord?id=CVE-2024-58088 Référence CVE CVE-2024-58093 https://www.cve.org/CVERecord?id=CVE-2024-58093 Référence CVE CVE-2024-58094 https://www.cve.org/CVERecord?id=CVE-2024-58094 Référence CVE CVE-2024-58095 https://www.cve.org/CVERecord?id=CVE-2024-58095 Référence CVE CVE-2024-58096 https://www.cve.org/CVERecord?id=CVE-2024-58096 Référence CVE CVE-2024-58097 https://www.cve.org/CVERecord?id=CVE-2024-58097 Référence CVE CVE-2025-21683 https://www.cve.org/CVERecord?id=CVE-2025-21683 Référence CVE CVE-2025-21696 https://www.cve.org/CVERecord?id=CVE-2025-21696 Référence CVE CVE-2025-21707 https://www.cve.org/CVERecord?id=CVE-2025-21707 Référence CVE CVE-2025-21758 https://www.cve.org/CVERecord?id=CVE-2025-21758 Référence CVE CVE-2025-21768 https://www.cve.org/CVERecord?id=CVE-2025-21768 Référence CVE CVE-2025-21792 https://www.cve.org/CVERecord?id=CVE-2025-21792 Référence CVE CVE-2025-21808 https://www.cve.org/CVERecord?id=CVE-2025-21808 Référence CVE CVE-2025-21812 https://www.cve.org/CVERecord?id=CVE-2025-21812 Référence CVE CVE-2025-21833 https://www.cve.org/CVERecord?id=CVE-2025-21833 Référence CVE CVE-2025-21852 https://www.cve.org/CVERecord?id=CVE-2025-21852 Référence CVE CVE-2025-21853 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0465Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2024-58071 Référence CVE CVE-2024-58088 https://www.cve.org/CVERecord?id=CVE-2024-58088 Référence CVE CVE-2024-58093 https://www.cve.org/CVERecord?id=CVE-2024-58093 Référence CVE CVE-2024-58094 https://www.cve.org/CVERecord?id=CVE-2024-58094 Référence CVE CVE-2024-58095 https://www.cve.org/CVERecord?id=CVE-2024-58095 Référence CVE CVE-2024-58096 https://www.cve.org/CVERecord?id=CVE-2024-58096 Référence CVE CVE-2024-58097 https://www.cve.org/CVERecord?id=CVE-2024-58097 Référence CVE CVE-2025-21683 https://www.cve.org/CVERecord?id=CVE-2025-21683 Référence CVE CVE-2025-21696 https://www.cve.org/CVERecord?id=CVE-2025-21696 Référence CVE CVE-2025-21707 https://www.cve.org/CVERecord?id=CVE-2025-21707 Référence CVE CVE-2025-21729 https://www.cve.org/CVERecord?id=CVE-2025-21729 Référence CVE CVE-2025-21755 https://www.cve.org/CVERecord?id=CVE-2025-21755 Référence CVE CVE-2025-21758 https://www.cve.org/CVERecord?id=CVE-2025-21758 Référence CVE CVE-2025-21768 https://www.cve.org/CVERecord?id=CVE-2025-21768 Référence CVE CVE-2025-21792 https://www.cve.org/CVERecord?id=CVE-2025-21792 Référence CVE CVE-2025-21806 https://www.cve.org/CVERecord?id=CVE-2025-21806 Référence CVE CVE-2025-21808 https://www.cve.org/CVERecord?id=CVE-2025-21808 Référence CVE CVE-2025-21812 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0449Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2024-58088 Référence CVE CVE-2024-58093 https://www.cve.org/CVERecord?id=CVE-2024-58093 Référence CVE CVE-2024-58094 https://www.cve.org/CVERecord?id=CVE-2024-58094 Référence CVE CVE-2024-58095 https://www.cve.org/CVERecord?id=CVE-2024-58095 Référence CVE CVE-2024-58096 https://www.cve.org/CVERecord?id=CVE-2024-58096 Référence CVE CVE-2024-58097 https://www.cve.org/CVERecord?id=CVE-2024-58097 Référence CVE CVE-2025-21635 https://www.cve.org/CVERecord?id=CVE-2025-21635 Référence CVE CVE-2025-21683 https://www.cve.org/CVERecord?id=CVE-2025-21683 Référence CVE CVE-2025-21696 https://www.cve.org/CVERecord?id=CVE-2025-21696 Référence CVE CVE-2025-21707 https://www.cve.org/CVERecord?id=CVE-2025-21707 Référence CVE CVE-2025-21726 https://www.cve.org/CVERecord?id=CVE-2025-21726 Référence CVE CVE-2025-21729 https://www.cve.org/CVERecord?id=CVE-2025-21729 Référence CVE CVE-2025-21735 https://www.cve.org/CVERecord?id=CVE-2025-21735 Référence CVE CVE-2025-21750 https://www.cve.org/CVERecord?id=CVE-2025-21750 Référence CVE CVE-2025-21755 https://www.cve.org/CVERecord?id=CVE-2025-21755 Référence CVE CVE-2025-21758 https://www.cve.org/CVERecord?id=CVE-2025-21758 Référence CVE CVE-2025-21764 https://www.cve.org/CVERecord?id=CVE-2025-21764 Référence CVE CVE-2025-21768 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0277Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2024-58085 Référence CVE CVE-2024-58086 https://www.cve.org/CVERecord?id=CVE-2024-58086 Référence CVE CVE-2025-21684 https://www.cve.org/CVERecord?id=CVE-2025-21684 Référence CVE CVE-2025-21700 https://www.cve.org/CVERecord?id=CVE-2025-21700 Référence CVE CVE-2025-21701 https://www.cve.org/CVERecord?id=CVE-2025-21701 Référence CVE CVE-2025-21703 https://www.cve.org/CVERecord?id=CVE-2025-21703 Référence CVE CVE-2025-21704 https://www.cve.org/CVERecord?id=CVE-2025-21704 Référence CVE CVE-2025-21705 https://www.cve.org/CVERecord?id=CVE-2025-21705 Référence CVE CVE-2025-21706 https://www.cve.org/CVERecord?id=CVE-2025-21706 Référence CVE CVE-2025-21707 https://www.cve.org/CVERecord?id=CVE-2025-21707 Référence CVE CVE-2025-21708 https://www.cve.org/CVERecord?id=CVE-2025-21708 Référence CVE CVE-2025-21711 https://www.cve.org/CVERecord?id=CVE-2025-21711 Référence CVE CVE-2025-21715 https://www.cve.org/CVERecord?id=CVE-2025-21715 Référence CVE CVE-2025-21716 https://www.cve.org/CVERecord?id=CVE-2025-21716 Référence CVE CVE-2025-21718 https://www.cve.org/CVERecord?id=CVE-2025-21718 Référence CVE CVE-2025-21719 https://www.cve.org/CVERecord?id=CVE-2025-21719 Référence CVE CVE-2025-21722 https://www.cve.org/CVERecord?id=CVE-2025-21722 Référence CVE CVE-2025-21724 https://www.cve.org/CVERecord?id=

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.6; SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.6; SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.6; SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= V3.1.6; SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= V3.1.6
Fixed
< 5.11; 5.15.179 ≤ 5.15.*; 6.1.129 ≤ 6.1.*; 6.6.76 ≤ 6.6.*; 6.12.13 ≤ 6.12.*; 6.13.2 ≤ 6.13.*; 6.14 ≤ *
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
04

Evidence and provenance

Published 27 Feb 2025 · Last source change 8 Sept 2026, 08:40 UTC · CWE-908 · Use of Uninitialized Resource

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2025-5243
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2025-5243↗Vendor CSAF · Siemens ProductCERT↗Patch or update reference↗Patch or update reference↗Patch or update reference↗Patch or update reference↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2025-21707 · cve.blacktree.nl