BlackTreeIndependent security intelligence

Full vulnerability report · 2026

CVE-2026-45841High confidence

netfilter: nfnetlink_osf: fix divide-by-zero in OSF_WSS_MODULO

Linux · Linux

5.5MediumCVSS 3.1

Recommended action

Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available

Distribution package intelligence

Ubuntu vendor package status

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

20 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 release	Source package	Vendor state	Fixed version	Evidence
Ubuntu 24.04 LTSnoble · standard archive	`linux`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-aws`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-fde`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-nvidia`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gcp`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gke`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gkeop`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-ibm`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-lowlatency`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia-lowlatency`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia-tegra`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oem-6.11`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oracle`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi-realtime`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-realtime`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-riscv`	Affected, 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 feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-xilinx`	Affected, 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 feed`	Canonical record ↗Source updated 8 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: netfilter: nfnetlink_osf: fix divide-by-zero in OSF_WSS_MODULO nf_osf_match_one() computes ctx->window % f->wss.val in the OSF_WSS_MODULO branch with no guard for f->wss.val == 0. A CAP_NET_ADMIN user can add such a fingerprint via nfnetlink; a subsequent matching TCP SYN divides by zero and panics the kernel. Reject the bogus fingerprint in nfnl_osf_add_callback() above the per-option for-loop. f->wss is per-fingerprint, not per-option, so the check must run regardless of f->opt_num (including 0). Also reject wss.wc >= OSF_WSS_MAX; nf_osf_match_one() already treats that as "should not happen". Crash: Oops: divide error: 0000 [#1] SMP KASAN NOPTI RIP: 0010:nf_osf_match_one (net/netfilter/nfnetlink_osf.c:98) Call Trace: nf_osf_match (net/netfilter/nfnetlink_osf.c:220) xt_osf_match_packet (net/netfilter/xt_osf.c:32) ipt_do_table (net/ipv4/netfilter/ip_tables.c:348) nf_hook_slow (net/netfilter/core.c:622) ip_local_deliver (net/ipv4/ip_input.c:265) ip_rcv (include/linux/skbuff.h:1162) __netif_receive_skb_one_core (net/core/dev.c:6181) process_backlog (net/core/dev.c:6642) __napi_poll (net/core/dev.c:7710) net_rx_action (net/core/dev.c:7945) handle_softirqs (kernel/softirq.c:622)
Remediation: Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.

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-2026-32167

No EUVD known-exploited evidence

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix divide-by-zero in OSF_WSS_MODULO nf_osf_match_one() computes ctx->window % f->wss.val in the OSF_WSS_MODULO branch with no guard for f->wss.val == 0. A CAP_NET_ADMIN user can add such a fingerprint via nfnetlink; a subsequent matching TCP SYN divides by zero and panics the kernel. Reject the bogus fingerprint in nfnl_osf_add_callback() above the per-option for-loop. f->wss is per-fingerprint, not per-option, so the check must run regardless of f->opt_num (including 0). Also reject wss.wc >= OSF_WSS_MAX; nf_osf_match_one() already treats that as "should not happen". Crash: Oops: divide error: 0000 [#1] SMP KASAN NOPTI RIP: 0010:nf_osf_match_one (net/netfilter/nfnetlink_osf.c:98) Call Trace: <IRQ> nf_osf_match (net/netfilter/nfnetlink_osf.c:220) xt_osf_match_packet (net/netfilter/xt_osf.c:32) ipt_do_table (net/ipv4/netfilter/ip_tables.c:348) nf_hook_slow (net/netfilter/core.c:622) ip_local_deliver (net/ipv4/ip_input.c:265) ip_rcv (include/linux/skbuff.h:1162) __netif_receive_skb_one_core (net/core/dev.c:6181) process_backlog (net/core/dev.c:6642) __napi_poll (net/core/dev.c:7710) net_rx_action (net/core/dev.c:7945) handle_softirqs (kernel/softirq.c:622)

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: 0.0
Advisory evidence: No linked advisory details stored yet

Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available

What, why and how

What

Why

The product divides a value by zero.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

What

Why

The product divides a value by zero.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

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: local access → Divide By Zero → disrupt the affected service
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
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-369 ↗
CWE-369: Divide By Zero. The product divides a value by zero.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

Denial of serviceCWE-369

Official authority intelligence

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

ENISA EUVD · EUVD-2026-32167Official EUVD mapping

Official EUVD record

BSI · German · WID-SEC-W-2026-1691Linux Kernel: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Zustand oder andere Auswirkungen herbeizuführen.

Official advisory

CERT-FR · French · CERTFR-2026-AVI-1093Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-43499 Référence CVE CVE-2026-43501 https://www.cve.org/CVERecord?id=CVE-2026-43501 Référence CVE CVE-2026-43502 https://www.cve.org/CVERecord?id=CVE-2026-43502 Référence CVE CVE-2026-45834 https://www.cve.org/CVERecord?id=CVE-2026-45834 Référence CVE CVE-2026-45835 https://www.cve.org/CVERecord?id=CVE-2026-45835 Référence CVE CVE-2026-45836 https://www.cve.org/CVERecord?id=CVE-2026-45836 Référence CVE CVE-2026-45838 https://www.cve.org/CVERecord?id=CVE-2026-45838 Référence CVE CVE-2026-45839 https://www.cve.org/CVERecord?id=CVE-2026-45839 Référence CVE CVE-2026-45840 https://www.cve.org/CVERecord?id=CVE-2026-45840 Référence CVE CVE-2026-45841 https://www.cve.org/CVERecord?id=CVE-2026-45841 Référence CVE CVE-2026-45842 https://www.cve.org/CVERecord?id=CVE-2026-45842 Référence CVE CVE-2026-45843 https://www.cve.org/CVERecord?id=CVE-2026-45843 Référence CVE CVE-2026-45844 https://www.cve.org/CVERecord?id=CVE-2026-45844 Référence CVE CVE-2026-45846 https://www.cve.org/CVERecord?id=CVE-2026-45846 Référence CVE CVE-2026-45847 https://www.cve.org/CVERecord?id=CVE-2026-45847 Référence CVE CVE-2026-45848 https://www.cve.org/CVERecord?id=CVE-2026-45848 Référence CVE CVE-2026-45852 https://www.cve.org/CVERecord?id=CVE-2026-45852 Référence CVE CVE-2026-45856 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-1066Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-43499 Référence CVE CVE-2026-43502 https://www.cve.org/CVERecord?id=CVE-2026-43502 Référence CVE CVE-2026-45834 https://www.cve.org/CVERecord?id=CVE-2026-45834 Référence CVE CVE-2026-45835 https://www.cve.org/CVERecord?id=CVE-2026-45835 Référence CVE CVE-2026-45836 https://www.cve.org/CVERecord?id=CVE-2026-45836 Référence CVE CVE-2026-45837 https://www.cve.org/CVERecord?id=CVE-2026-45837 Référence CVE CVE-2026-45838 https://www.cve.org/CVERecord?id=CVE-2026-45838 Référence CVE CVE-2026-45839 https://www.cve.org/CVERecord?id=CVE-2026-45839 Référence CVE CVE-2026-45840 https://www.cve.org/CVERecord?id=CVE-2026-45840 Référence CVE CVE-2026-45841 https://www.cve.org/CVERecord?id=CVE-2026-45841 Référence CVE CVE-2026-45842 https://www.cve.org/CVERecord?id=CVE-2026-45842 Référence CVE CVE-2026-45843 https://www.cve.org/CVERecord?id=CVE-2026-45843 Référence CVE CVE-2026-45844 https://www.cve.org/CVERecord?id=CVE-2026-45844 Référence CVE CVE-2026-45845 https://www.cve.org/CVERecord?id=CVE-2026-45845 Référence CVE CVE-2026-45846 https://www.cve.org/CVERecord?id=CVE-2026-45846 Référence CVE CVE-2026-45855 https://www.cve.org/CVERecord?id=CVE-2026-45855 Référence CVE CVE-2026-45858 https://www.cve.org/CVERecord?id=CVE-2026-45858 Référence CVE CVE-2026-45899 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0985Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-43496 Référence CVE CVE-2026-43497 https://www.cve.org/CVERecord?id=CVE-2026-43497 Référence CVE CVE-2026-43502 https://www.cve.org/CVERecord?id=CVE-2026-43502 Référence CVE CVE-2026-45834 https://www.cve.org/CVERecord?id=CVE-2026-45834 Référence CVE CVE-2026-45835 https://www.cve.org/CVERecord?id=CVE-2026-45835 Référence CVE CVE-2026-45836 https://www.cve.org/CVERecord?id=CVE-2026-45836 Référence CVE CVE-2026-45838 https://www.cve.org/CVERecord?id=CVE-2026-45838 Référence CVE CVE-2026-45839 https://www.cve.org/CVERecord?id=CVE-2026-45839 Référence CVE CVE-2026-45840 https://www.cve.org/CVERecord?id=CVE-2026-45840 Référence CVE CVE-2026-45841 https://www.cve.org/CVERecord?id=CVE-2026-45841 Référence CVE CVE-2026-45842 https://www.cve.org/CVERecord?id=CVE-2026-45842 Référence CVE CVE-2026-45843 https://www.cve.org/CVERecord?id=CVE-2026-45843 Référence CVE CVE-2026-45844 https://www.cve.org/CVERecord?id=CVE-2026-45844 Référence CVE CVE-2026-45846 https://www.cve.org/CVERecord?id=CVE-2026-45846 Référence CVE CVE-2026-45847 https://www.cve.org/CVERecord?id=CVE-2026-45847 Référence CVE CVE-2026-45848 https://www.cve.org/CVERecord?id=CVE-2026-45848 Référence CVE CVE-2026-45852 https://www.cve.org/CVERecord?id=CVE-2026-45852 Référence CVE CVE-2026-45856 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0956Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-43473 Référence CVE CVE-2026-43491 https://www.cve.org/CVERecord?id=CVE-2026-43491 Référence CVE CVE-2026-43492 https://www.cve.org/CVERecord?id=CVE-2026-43492 Référence CVE CVE-2026-43494 https://www.cve.org/CVERecord?id=CVE-2026-43494 Référence CVE CVE-2026-43501 https://www.cve.org/CVERecord?id=CVE-2026-43501 Référence CVE CVE-2026-43502 https://www.cve.org/CVERecord?id=CVE-2026-43502 Référence CVE CVE-2026-45837 https://www.cve.org/CVERecord?id=CVE-2026-45837 Référence CVE CVE-2026-45838 https://www.cve.org/CVERecord?id=CVE-2026-45838 Référence CVE CVE-2026-45840 https://www.cve.org/CVERecord?id=CVE-2026-45840 Référence CVE CVE-2026-45841 https://www.cve.org/CVERecord?id=CVE-2026-45841 Référence CVE CVE-2026-45848 https://www.cve.org/CVERecord?id=CVE-2026-45848 Référence CVE CVE-2026-45857 https://www.cve.org/CVERecord?id=CVE-2026-45857 Référence CVE CVE-2026-45858 https://www.cve.org/CVERecord?id=CVE-2026-45858 Référence CVE CVE-2026-45861 https://www.cve.org/CVERecord?id=CVE-2026-45861 Référence CVE CVE-2026-45862 https://www.cve.org/CVERecord?id=CVE-2026-45862 Référence CVE CVE-2026-45870 https://www.cve.org/CVERecord?id=CVE-2026-45870 Référence CVE CVE-2026-45884 https://www.cve.org/CVERecord?id=CVE-2026-45884 Référence CVE CVE-2026-45888 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0954Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-43502 Référence CVE CVE-2026-43503 https://www.cve.org/CVERecord?id=CVE-2026-43503 Référence CVE CVE-2026-45834 https://www.cve.org/CVERecord?id=CVE-2026-45834 Référence CVE CVE-2026-45835 https://www.cve.org/CVERecord?id=CVE-2026-45835 Référence CVE CVE-2026-45836 https://www.cve.org/CVERecord?id=CVE-2026-45836 Référence CVE CVE-2026-45837 https://www.cve.org/CVERecord?id=CVE-2026-45837 Référence CVE CVE-2026-45838 https://www.cve.org/CVERecord?id=CVE-2026-45838 Référence CVE CVE-2026-45839 https://www.cve.org/CVERecord?id=CVE-2026-45839 Référence CVE CVE-2026-45840 https://www.cve.org/CVERecord?id=CVE-2026-45840 Référence CVE CVE-2026-45841 https://www.cve.org/CVERecord?id=CVE-2026-45841 Référence CVE CVE-2026-45842 https://www.cve.org/CVERecord?id=CVE-2026-45842 Référence CVE CVE-2026-45843 https://www.cve.org/CVERecord?id=CVE-2026-45843 Référence CVE CVE-2026-45844 https://www.cve.org/CVERecord?id=CVE-2026-45844 Référence CVE CVE-2026-45845 https://www.cve.org/CVERecord?id=CVE-2026-45845 Référence CVE CVE-2026-45846 https://www.cve.org/CVERecord?id=CVE-2026-45846 Référence CVE CVE-2026-45847 https://www.cve.org/CVERecord?id=CVE-2026-45847 Référence CVE CVE-2026-45848 https://www.cve.org/CVERecord?id=CVE-2026-45848 Référence CVE CVE-2026-45849 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0926Multiples vulnérabilités dans le noyau Linux d'Ubuntu

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0927Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-43497 Référence CVE CVE-2026-43501 https://www.cve.org/CVERecord?id=CVE-2026-43501 Référence CVE CVE-2026-43502 https://www.cve.org/CVERecord?id=CVE-2026-43502 Référence CVE CVE-2026-45834 https://www.cve.org/CVERecord?id=CVE-2026-45834 Référence CVE CVE-2026-45835 https://www.cve.org/CVERecord?id=CVE-2026-45835 Référence CVE CVE-2026-45837 https://www.cve.org/CVERecord?id=CVE-2026-45837 Référence CVE CVE-2026-45838 https://www.cve.org/CVERecord?id=CVE-2026-45838 Référence CVE CVE-2026-45839 https://www.cve.org/CVERecord?id=CVE-2026-45839 Référence CVE CVE-2026-45840 https://www.cve.org/CVERecord?id=CVE-2026-45840 Référence CVE CVE-2026-45841 https://www.cve.org/CVERecord?id=CVE-2026-45841 Référence CVE CVE-2026-45848 https://www.cve.org/CVERecord?id=CVE-2026-45848 Référence CVE CVE-2026-45851 https://www.cve.org/CVERecord?id=CVE-2026-45851 Référence CVE CVE-2026-45853 https://www.cve.org/CVERecord?id=CVE-2026-45853 Référence CVE CVE-2026-45857 https://www.cve.org/CVERecord?id=CVE-2026-45857 Référence CVE CVE-2026-45858 https://www.cve.org/CVERecord?id=CVE-2026-45858 Référence CVE CVE-2026-45861 https://www.cve.org/CVERecord?id=CVE-2026-45861 Référence CVE CVE-2026-45862 https://www.cve.org/CVERecord?id=CVE-2026-45862 Référence CVE CVE-2026-45867 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0864Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-43483 Référence CVE CVE-2026-43491 https://www.cve.org/CVERecord?id=CVE-2026-43491 Référence CVE CVE-2026-43492 https://www.cve.org/CVERecord?id=CVE-2026-43492 Référence CVE CVE-2026-43499 https://www.cve.org/CVERecord?id=CVE-2026-43499 Référence CVE CVE-2026-43501 https://www.cve.org/CVERecord?id=CVE-2026-43501 Référence CVE CVE-2026-43502 https://www.cve.org/CVERecord?id=CVE-2026-43502 Référence CVE CVE-2026-43503 https://www.cve.org/CVERecord?id=CVE-2026-43503 Référence CVE CVE-2026-45838 https://www.cve.org/CVERecord?id=CVE-2026-45838 Référence CVE CVE-2026-45840 https://www.cve.org/CVERecord?id=CVE-2026-45840 Référence CVE CVE-2026-45841 https://www.cve.org/CVERecord?id=CVE-2026-45841 Référence CVE CVE-2026-45842 https://www.cve.org/CVERecord?id=CVE-2026-45842 Référence CVE CVE-2026-45843 https://www.cve.org/CVERecord?id=CVE-2026-45843 Référence CVE CVE-2026-45846 https://www.cve.org/CVERecord?id=CVE-2026-45846 Référence CVE CVE-2026-45848 https://www.cve.org/CVERecord?id=CVE-2026-45848 Référence CVE CVE-2026-45852 https://www.cve.org/CVERecord?id=CVE-2026-45852 Référence CVE CVE-2026-45856 https://www.cve.org/CVERecord?id=CVE-2026-45856 Référence CVE CVE-2026-45862 https://www.cve.org/CVERecord?id=CVE-2026-45862 Référence CVE CVE-2026-45870 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0862Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-43499 Référence CVE CVE-2026-43501 https://www.cve.org/CVERecord?id=CVE-2026-43501 Référence CVE CVE-2026-43502 https://www.cve.org/CVERecord?id=CVE-2026-43502 Référence CVE CVE-2026-45834 https://www.cve.org/CVERecord?id=CVE-2026-45834 Référence CVE CVE-2026-45835 https://www.cve.org/CVERecord?id=CVE-2026-45835 Référence CVE CVE-2026-45836 https://www.cve.org/CVERecord?id=CVE-2026-45836 Référence CVE CVE-2026-45838 https://www.cve.org/CVERecord?id=CVE-2026-45838 Référence CVE CVE-2026-45839 https://www.cve.org/CVERecord?id=CVE-2026-45839 Référence CVE CVE-2026-45840 https://www.cve.org/CVERecord?id=CVE-2026-45840 Référence CVE CVE-2026-45841 https://www.cve.org/CVERecord?id=CVE-2026-45841 Référence CVE CVE-2026-45842 https://www.cve.org/CVERecord?id=CVE-2026-45842 Référence CVE CVE-2026-45843 https://www.cve.org/CVERecord?id=CVE-2026-45843 Référence CVE CVE-2026-45844 https://www.cve.org/CVERecord?id=CVE-2026-45844 Référence CVE CVE-2026-45846 https://www.cve.org/CVERecord?id=CVE-2026-45846 Référence CVE CVE-2026-45850 https://www.cve.org/CVERecord?id=CVE-2026-45850 Référence CVE CVE-2026-45930 https://www.cve.org/CVERecord?id=CVE-2026-45930 Référence CVE CVE-2026-45986 https://www.cve.org/CVERecord?id=CVE-2026-45986 Référence CVE CVE-2026-45987 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0833Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-43455 Référence CVE CVE-2026-43469 https://www.cve.org/CVERecord?id=CVE-2026-43469 Référence CVE CVE-2026-43470 https://www.cve.org/CVERecord?id=CVE-2026-43470 Référence CVE CVE-2026-43483 https://www.cve.org/CVERecord?id=CVE-2026-43483 Référence CVE CVE-2026-43491 https://www.cve.org/CVERecord?id=CVE-2026-43491 Référence CVE CVE-2026-43499 https://www.cve.org/CVERecord?id=CVE-2026-43499 Référence CVE CVE-2026-43501 https://www.cve.org/CVERecord?id=CVE-2026-43501 Référence CVE CVE-2026-43503 https://www.cve.org/CVERecord?id=CVE-2026-43503 Référence CVE CVE-2026-45840 https://www.cve.org/CVERecord?id=CVE-2026-45840 Référence CVE CVE-2026-45841 https://www.cve.org/CVERecord?id=CVE-2026-45841 Référence CVE CVE-2026-45842 https://www.cve.org/CVERecord?id=CVE-2026-45842 Référence CVE CVE-2026-45843 https://www.cve.org/CVERecord?id=CVE-2026-45843 Référence CVE CVE-2026-45846 https://www.cve.org/CVERecord?id=CVE-2026-45846 Référence CVE CVE-2026-45852 https://www.cve.org/CVERecord?id=CVE-2026-45852 Référence CVE CVE-2026-45856 https://www.cve.org/CVERecord?id=CVE-2026-45856 Référence CVE CVE-2026-45862 https://www.cve.org/CVERecord?id=CVE-2026-45862 Référence CVE CVE-2026-45870 https://www.cve.org/CVERecord?id=CVE-2026-45870 Référence CVE CVE-2026-45878 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0809Multiples vulnérabilités dans le noyau Linux de Debian

d?id=CVE-2026-31717 Référence CVE CVE-2026-43116 https://www.cve.org/CVERecord?id=CVE-2026-43116 Référence CVE CVE-2026-43219 https://www.cve.org/CVERecord?id=CVE-2026-43219 Référence CVE CVE-2026-43245 https://www.cve.org/CVERecord?id=CVE-2026-43245 Référence CVE CVE-2026-43303 https://www.cve.org/CVERecord?id=CVE-2026-43303 Référence CVE CVE-2026-43331 https://www.cve.org/CVERecord?id=CVE-2026-43331 Référence CVE CVE-2026-45838 https://www.cve.org/CVERecord?id=CVE-2026-45838 Référence CVE CVE-2026-45839 https://www.cve.org/CVERecord?id=CVE-2026-45839 Référence CVE CVE-2026-45840 https://www.cve.org/CVERecord?id=CVE-2026-45840 Référence CVE CVE-2026-45841 https://www.cve.org/CVERecord?id=CVE-2026-45841 Référence CVE CVE-2026-45842 https://www.cve.org/CVERecord?id=CVE-2026-45842 Référence CVE CVE-2026-45843 https://www.cve.org/CVERecord?id=CVE-2026-45843 Référence CVE CVE-2026-45844 https://www.cve.org/CVERecord?id=CVE-2026-45844 Référence CVE CVE-2026-45845 https://www.cve.org/CVERecord?id=CVE-2026-45845 Référence CVE CVE-2026-45846 https://www.cve.org/CVERecord?id=CVE-2026-45846 Référence CVE CVE-2026-45850 https://www.cve.org/CVERecord?id=CVE-2026-45850 Référence CVE CVE-2026-45930 https://www.cve.org/CVERecord?id=CVE-2026-45930 Référence CVE CVE-2026-46117 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0782Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-43470 Référence CVE CVE-2026-43483 https://www.cve.org/CVERecord?id=CVE-2026-43483 Référence CVE CVE-2026-43499 https://www.cve.org/CVERecord?id=CVE-2026-43499 Référence CVE CVE-2026-43501 https://www.cve.org/CVERecord?id=CVE-2026-43501 Référence CVE CVE-2026-43503 https://www.cve.org/CVERecord?id=CVE-2026-43503 Référence CVE CVE-2026-45445 https://www.cve.org/CVERecord?id=CVE-2026-45445 Référence CVE CVE-2026-45446 https://www.cve.org/CVERecord?id=CVE-2026-45446 Référence CVE CVE-2026-45447 https://www.cve.org/CVERecord?id=CVE-2026-45447 Référence CVE CVE-2026-45835 https://www.cve.org/CVERecord?id=CVE-2026-45835 Référence CVE CVE-2026-45841 https://www.cve.org/CVERecord?id=CVE-2026-45841 Référence CVE CVE-2026-45842 https://www.cve.org/CVERecord?id=CVE-2026-45842 Référence CVE CVE-2026-45843 https://www.cve.org/CVERecord?id=CVE-2026-45843 Référence CVE CVE-2026-45846 https://www.cve.org/CVERecord?id=CVE-2026-45846 Référence CVE CVE-2026-45852 https://www.cve.org/CVERecord?id=CVE-2026-45852 Référence CVE CVE-2026-45856 https://www.cve.org/CVERecord?id=CVE-2026-45856 Référence CVE CVE-2026-45870 https://www.cve.org/CVERecord?id=CVE-2026-45870 Référence CVE CVE-2026-45878 https://www.cve.org/CVERecord?id=CVE-2026-45878 Référence CVE CVE-2026-45886 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0731Multiples vulnérabilités dans les produits Microsoft

rsion 10 juin 2026 Date de la dernière version 10 juin 2026 Source(s) Bulletin de sécurité Microsoft CVE-2026-39833 du 27 mai 2026 Bulletin de sécurité Microsoft CVE-2026-43503 du 27 mai 2026 Bulletin de sécurité Microsoft CVE-2026-46300 du 27 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45834 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45835 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45836 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45838 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45839 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45840 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45841 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45842 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45843 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45844 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45845 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45846 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45986 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45987 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45988 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45989 du 28 mai 2026 Bulletin de sécurité Microsoft CVE-2026-45991 du 28 mai 2026 Bulletin de sécurité Mic

Official advisory

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: < 2.6.31; 5.10.258 ≤ 5.10.*; 5.15.209 ≤ 5.15.*; 6.1.175 ≤ 6.1.*; 6.6.141 ≤ 6.6.*; 6.12.91 ≤ 6.12.*; 6.18.33 ≤ 6.18.*; 7.0.10 ≤ 7.0.*
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.

Evidence and provenance

Published 27 May 2026 · Last source change 8 Sept 2026, 08:48 UTC · CWE-369 · Divide By Zero

CVE recordCVE.org · 5.2

CVSS sourceNIST NVD

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-2026-32167

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.

2026-05-27CVE published

2026-09-08Fixed release or patch reference recorded

ENISA EUVD · EUVD-2026-32167↗Vendor CSAF · Siemens ProductCERT↗CVE authority or vendor reference↗Patch or update reference↗Patch or update reference↗Patch or update 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.

netfilter: nfnetlink_osf: fix divide-by-zero in OSF_WSS_MODULO

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

EUVD-2026-32167

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

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