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Full vulnerability report · 2026
CVE-2026-63828High confidence

apparmor: mediate the implicit connect of TCP fast open sendmsg

Linux · Linux

8.4HighCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 20 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:Medium, lowered one band.downgradedsince 17 Aug 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.17% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Linux Linux and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 20 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

24 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 20 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

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.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.12.95-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.1.177-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.7.1.3-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.7.1.3-1Debian Security Tracker ↗Source updated 6 Oct 2026
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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-fdeAffected, 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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 Ubuntu Security ↗Source updated 6 Oct 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
CVE-2026-63828 · CSAF 2.0 · revision 14 · interimSUSE Product Security TeamCVE-2026-63828
340 known affected

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

  • kernel-default as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-source as component of SUSE Linux Enterprise Desktop 15 SP7
  • cluster-md-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • dlm-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • gfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-source as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • ocfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-default as component of SUSE Linux Enterprise High Availability Extension 16.0
  • kernel-source as component of SUSE Linux Enterprise High Availability Extension 16.0
  • cluster-md-kmp-default as component of SUSE Linux Enterprise High Performance Computing 12 SP5
Summary
In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg()/sendto() with MSG_FASTOPEN is a combination of connect(2) and write(2): it opens the connection in the SYN. apparmor_socket_sendmsg() only checks AA_MAY_SEND, so a profile that grants send but denies connect lets a confined task open an outbound TCP/MPTCP connection that connect(2) would have refused, bypassing connect mediation. Mediate the implicit connect when MSG_FASTOPEN is set and a destination is supplied. Add it to apparmor_socket_sendmsg() (not the shared aa_sock_msg_perm() helper, which recvmsg also uses) and call aa_sk_perm() directly, mirroring the selinux and tomoyo fixes. sk_is_tcp() does not cover MPTCP fast open, so the SOCK_STREAM/IPPROTO_MPTCP arm is explicit.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Optional official sources

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

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

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-2026-45494

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

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
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 20 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg()/sendto() with MSG_FASTOPEN is a combination of connect(2) and write(2): it opens the connection in the SYN. apparmor_socket_sendmsg() only checks AA_MAY_SEND, so a profile that grants send but denies connect lets a confined task open an outbound TCP/MPTCP connection that connect(2) would have refused, bypassing connect mediation. Mediate the implicit connect when MSG_FASTOPEN is set and a destination is supplied. Add it to apparmor_socket_sendmsg() (not the shared aa_sock_msg_perm() helper, which recvmsg also uses) and call aa_sk_perm() directly, mirroring the selinux and tomoyo fixes. sk_is_tcp() does not cover MPTCP fast open, so the SOCK_STREAM/IPPROTO_MPTCP arm is explicit.

What

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg()/sendto() with MSG_FASTOPEN is a combination of connect(2) and write(2): it opens the connection in the SYN. apparmor_socket_sendmsg() only checks AA_MAY_SEND, so a profile that grants send but denies connect lets a confined task open an outbound TCP/MPTCP connection that connect(2) would have refused, bypassing connect mediation. Mediate the implicit connect when MSG_FASTOPEN is set and a destination is supplied. Add it to apparmor_socket_sendmsg() (not the shared aa_sock_msg_perm() helper, which recvmsg also uses) and call aa_sk_perm() directly, mirroring the selinux and tomoyo fixes. sk_is_tcp() does not cover MPTCP fast open, so the SOCK_STREAM/IPPROTO_MPTCP arm is explicit.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation with low privileges. 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: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg()/sendto() with MSG_FASTOPEN is a combination of connect(2) and write(2): it opens the connection in the SYN. apparmor_socket_sendmsg() only checks AA_MAY_SEND, so a profile that grants send but denies connect lets a confined task open an outbound TCP/MPTCP connection that connect(2) would have refused, bypassing connect mediation. Mediate the implicit connect when MSG_FASTOPEN is set and a destination is supplied. Add it to apparmor_socket_sendmsg() (not the shared aa_sock_msg_perm() helper, which recvmsg also uses) and call aa_sk_perm() directly, mirroring the selinux and tomoyo fixes. sk_is_tcp() does not cover MPTCP fast open, so the SOCK_STREAM/IPPROTO_MPTCP arm is explicit.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation with low privileges. 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
local access → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
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
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration.
CWE not yet assigned
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:C/C:H/I:H/A:N

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.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: No direct loss is represented by this metric.
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.
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-2403Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, möglicherweise Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen oder vertrauliche Informationen offenzulegen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260722Security Bulletin 22 Jul 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 22 Jul 2026, published on 22 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1252Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-63819 Référence CVE CVE-2026-63820 https://www.cve.org/CVERecord?id=CVE-2026-63820 Référence CVE CVE-2026-63821 https://www.cve.org/CVERecord?id=CVE-2026-63821 Référence CVE CVE-2026-63822 https://www.cve.org/CVERecord?id=CVE-2026-63822 Référence CVE CVE-2026-63823 https://www.cve.org/CVERecord?id=CVE-2026-63823 Référence CVE CVE-2026-63824 https://www.cve.org/CVERecord?id=CVE-2026-63824 Référence CVE CVE-2026-63825 https://www.cve.org/CVERecord?id=CVE-2026-63825 Référence CVE CVE-2026-63826 https://www.cve.org/CVERecord?id=CVE-2026-63826 Référence CVE CVE-2026-63827 https://www.cve.org/CVERecord?id=CVE-2026-63827 Référence CVE CVE-2026-63828 https://www.cve.org/CVERecord?id=CVE-2026-63828 Référence CVE CVE-2026-63829 https://www.cve.org/CVERecord?id=CVE-2026-63829 Référence CVE CVE-2026-63830 https://www.cve.org/CVERecord?id=CVE-2026-63830 Référence CVE CVE-2026-63831 https://www.cve.org/CVERecord?id=CVE-2026-63831 Référence CVE CVE-2026-63832 https://www.cve.org/CVERecord?id=CVE-2026-63832 Référence CVE CVE-2026-63833 https://www.cve.org/CVERecord?id=CVE-2026-63833 Référence CVE CVE-2026-63834 https://www.cve.org/CVERecord?id=CVE-2026-63834 Référence CVE CVE-2026-63835 https://www.cve.org/CVERecord?id=CVE-2026-63835 Référence CVE CVE-2026-63836 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1255Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53360 Référence CVE CVE-2026-53365 https://www.cve.org/CVERecord?id=CVE-2026-53365 Référence CVE CVE-2026-53388 https://www.cve.org/CVERecord?id=CVE-2026-53388 Référence CVE CVE-2026-63801 https://www.cve.org/CVERecord?id=CVE-2026-63801 Référence CVE CVE-2026-63803 https://www.cve.org/CVERecord?id=CVE-2026-63803 Référence CVE CVE-2026-63804 https://www.cve.org/CVERecord?id=CVE-2026-63804 Référence CVE CVE-2026-63808 https://www.cve.org/CVERecord?id=CVE-2026-63808 Référence CVE CVE-2026-63810 https://www.cve.org/CVERecord?id=CVE-2026-63810 Référence CVE CVE-2026-63823 https://www.cve.org/CVERecord?id=CVE-2026-63823 Référence CVE CVE-2026-63828 https://www.cve.org/CVERecord?id=CVE-2026-63828 Référence CVE CVE-2026-63860 https://www.cve.org/CVERecord?id=CVE-2026-63860 Référence CVE CVE-2026-63865 https://www.cve.org/CVERecord?id=CVE-2026-63865 Référence CVE CVE-2026-63868 https://www.cve.org/CVERecord?id=CVE-2026-63868 Référence CVE CVE-2026-63879 https://www.cve.org/CVERecord?id=CVE-2026-63879 Référence CVE CVE-2026-63887 https://www.cve.org/CVERecord?id=CVE-2026-63887 Référence CVE CVE-2026-63888 https://www.cve.org/CVERecord?id=CVE-2026-63888 Référence CVE CVE-2026-63889 https://www.cve.org/CVERecord?id=CVE-2026-63889 Référence CVE CVE-2026-63890 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1229Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-63819 Référence CVE CVE-2026-63820 https://www.cve.org/CVERecord?id=CVE-2026-63820 Référence CVE CVE-2026-63821 https://www.cve.org/CVERecord?id=CVE-2026-63821 Référence CVE CVE-2026-63822 https://www.cve.org/CVERecord?id=CVE-2026-63822 Référence CVE CVE-2026-63823 https://www.cve.org/CVERecord?id=CVE-2026-63823 Référence CVE CVE-2026-63824 https://www.cve.org/CVERecord?id=CVE-2026-63824 Référence CVE CVE-2026-63825 https://www.cve.org/CVERecord?id=CVE-2026-63825 Référence CVE CVE-2026-63826 https://www.cve.org/CVERecord?id=CVE-2026-63826 Référence CVE CVE-2026-63827 https://www.cve.org/CVERecord?id=CVE-2026-63827 Référence CVE CVE-2026-63828 https://www.cve.org/CVERecord?id=CVE-2026-63828 Référence CVE CVE-2026-63829 https://www.cve.org/CVERecord?id=CVE-2026-63829 Référence CVE CVE-2026-63830 https://www.cve.org/CVERecord?id=CVE-2026-63830 Référence CVE CVE-2026-63831 https://www.cve.org/CVERecord?id=CVE-2026-63831 Référence CVE CVE-2026-63832 https://www.cve.org/CVERecord?id=CVE-2026-63832 Référence CVE CVE-2026-63833 https://www.cve.org/CVERecord?id=CVE-2026-63833 Référence CVE CVE-2026-63834 https://www.cve.org/CVERecord?id=CVE-2026-63834 Référence CVE CVE-2026-63835 https://www.cve.org/CVERecord?id=CVE-2026-63835 Référence CVE CVE-2026-63836 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1202Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53365 Référence CVE CVE-2026-53366 https://www.cve.org/CVERecord?id=CVE-2026-53366 Référence CVE CVE-2026-53381 https://www.cve.org/CVERecord?id=CVE-2026-53381 Référence CVE CVE-2026-53388 https://www.cve.org/CVERecord?id=CVE-2026-53388 Référence CVE CVE-2026-63801 https://www.cve.org/CVERecord?id=CVE-2026-63801 Référence CVE CVE-2026-63808 https://www.cve.org/CVERecord?id=CVE-2026-63808 Référence CVE CVE-2026-63810 https://www.cve.org/CVERecord?id=CVE-2026-63810 Référence CVE CVE-2026-63823 https://www.cve.org/CVERecord?id=CVE-2026-63823 Référence CVE CVE-2026-63827 https://www.cve.org/CVERecord?id=CVE-2026-63827 Référence CVE CVE-2026-63828 https://www.cve.org/CVERecord?id=CVE-2026-63828 Référence CVE CVE-2026-63842 https://www.cve.org/CVERecord?id=CVE-2026-63842 Référence CVE CVE-2026-63850 https://www.cve.org/CVERecord?id=CVE-2026-63850 Référence CVE CVE-2026-63860 https://www.cve.org/CVERecord?id=CVE-2026-63860 Référence CVE CVE-2026-63865 https://www.cve.org/CVERecord?id=CVE-2026-63865 Référence CVE CVE-2026-63868 https://www.cve.org/CVERecord?id=CVE-2026-63868 Référence CVE CVE-2026-63879 https://www.cve.org/CVERecord?id=CVE-2026-63879 Référence CVE CVE-2026-63881 https://www.cve.org/CVERecord?id=CVE-2026-63881 Référence CVE CVE-2026-63886 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1203Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-63819 Référence CVE CVE-2026-63820 https://www.cve.org/CVERecord?id=CVE-2026-63820 Référence CVE CVE-2026-63821 https://www.cve.org/CVERecord?id=CVE-2026-63821 Référence CVE CVE-2026-63822 https://www.cve.org/CVERecord?id=CVE-2026-63822 Référence CVE CVE-2026-63823 https://www.cve.org/CVERecord?id=CVE-2026-63823 Référence CVE CVE-2026-63824 https://www.cve.org/CVERecord?id=CVE-2026-63824 Référence CVE CVE-2026-63825 https://www.cve.org/CVERecord?id=CVE-2026-63825 Référence CVE CVE-2026-63826 https://www.cve.org/CVERecord?id=CVE-2026-63826 Référence CVE CVE-2026-63827 https://www.cve.org/CVERecord?id=CVE-2026-63827 Référence CVE CVE-2026-63828 https://www.cve.org/CVERecord?id=CVE-2026-63828 Référence CVE CVE-2026-63829 https://www.cve.org/CVERecord?id=CVE-2026-63829 Référence CVE CVE-2026-63830 https://www.cve.org/CVERecord?id=CVE-2026-63830 Référence CVE CVE-2026-63831 https://www.cve.org/CVERecord?id=CVE-2026-63831 Référence CVE CVE-2026-63832 https://www.cve.org/CVERecord?id=CVE-2026-63832 Référence CVE CVE-2026-63833 https://www.cve.org/CVERecord?id=CVE-2026-63833 Référence CVE CVE-2026-63834 https://www.cve.org/CVERecord?id=CVE-2026-63834 Référence CVE CVE-2026-63835 https://www.cve.org/CVERecord?id=CVE-2026-63835 Référence CVE CVE-2026-63836 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1162Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-63819 Référence CVE CVE-2026-63820 https://www.cve.org/CVERecord?id=CVE-2026-63820 Référence CVE CVE-2026-63821 https://www.cve.org/CVERecord?id=CVE-2026-63821 Référence CVE CVE-2026-63822 https://www.cve.org/CVERecord?id=CVE-2026-63822 Référence CVE CVE-2026-63823 https://www.cve.org/CVERecord?id=CVE-2026-63823 Référence CVE CVE-2026-63824 https://www.cve.org/CVERecord?id=CVE-2026-63824 Référence CVE CVE-2026-63825 https://www.cve.org/CVERecord?id=CVE-2026-63825 Référence CVE CVE-2026-63826 https://www.cve.org/CVERecord?id=CVE-2026-63826 Référence CVE CVE-2026-63827 https://www.cve.org/CVERecord?id=CVE-2026-63827 Référence CVE CVE-2026-63828 https://www.cve.org/CVERecord?id=CVE-2026-63828 Référence CVE CVE-2026-63829 https://www.cve.org/CVERecord?id=CVE-2026-63829 Référence CVE CVE-2026-63830 https://www.cve.org/CVERecord?id=CVE-2026-63830 Référence CVE CVE-2026-63831 https://www.cve.org/CVERecord?id=CVE-2026-63831 Référence CVE CVE-2026-63832 https://www.cve.org/CVERecord?id=CVE-2026-63832 Référence CVE CVE-2026-63833 https://www.cve.org/CVERecord?id=CVE-2026-63833 Référence CVE CVE-2026-63834 https://www.cve.org/CVERecord?id=CVE-2026-63834 Référence CVE CVE-2026-63835 https://www.cve.org/CVERecord?id=CVE-2026-63835 Référence CVE CVE-2026-63836 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1164Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53365 Référence CVE CVE-2026-53366 https://www.cve.org/CVERecord?id=CVE-2026-53366 Référence CVE CVE-2026-53381 https://www.cve.org/CVERecord?id=CVE-2026-53381 Référence CVE CVE-2026-53388 https://www.cve.org/CVERecord?id=CVE-2026-53388 Référence CVE CVE-2026-63801 https://www.cve.org/CVERecord?id=CVE-2026-63801 Référence CVE CVE-2026-63808 https://www.cve.org/CVERecord?id=CVE-2026-63808 Référence CVE CVE-2026-63810 https://www.cve.org/CVERecord?id=CVE-2026-63810 Référence CVE CVE-2026-63823 https://www.cve.org/CVERecord?id=CVE-2026-63823 Référence CVE CVE-2026-63827 https://www.cve.org/CVERecord?id=CVE-2026-63827 Référence CVE CVE-2026-63828 https://www.cve.org/CVERecord?id=CVE-2026-63828 Référence CVE CVE-2026-63842 https://www.cve.org/CVERecord?id=CVE-2026-63842 Référence CVE CVE-2026-63850 https://www.cve.org/CVERecord?id=CVE-2026-63850 Référence CVE CVE-2026-63860 https://www.cve.org/CVERecord?id=CVE-2026-63860 Référence CVE CVE-2026-63865 https://www.cve.org/CVERecord?id=CVE-2026-63865 Référence CVE CVE-2026-63868 https://www.cve.org/CVERecord?id=CVE-2026-63868 Référence CVE CVE-2026-63879 https://www.cve.org/CVERecord?id=CVE-2026-63879 Référence CVE CVE-2026-63881 https://www.cve.org/CVERecord?id=CVE-2026-63881 Référence CVE CVE-2026-63886 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0982Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-63809 Référence CVE CVE-2026-63810 https://www.cve.org/CVERecord?id=CVE-2026-63810 Référence CVE CVE-2026-63814 https://www.cve.org/CVERecord?id=CVE-2026-63814 Référence CVE CVE-2026-63815 https://www.cve.org/CVERecord?id=CVE-2026-63815 Référence CVE CVE-2026-63818 https://www.cve.org/CVERecord?id=CVE-2026-63818 Référence CVE CVE-2026-63822 https://www.cve.org/CVERecord?id=CVE-2026-63822 Référence CVE CVE-2026-63823 https://www.cve.org/CVERecord?id=CVE-2026-63823 Référence CVE CVE-2026-63824 https://www.cve.org/CVERecord?id=CVE-2026-63824 Référence CVE CVE-2026-63827 https://www.cve.org/CVERecord?id=CVE-2026-63827 Référence CVE CVE-2026-63828 https://www.cve.org/CVERecord?id=CVE-2026-63828 Référence CVE CVE-2026-63829 https://www.cve.org/CVERecord?id=CVE-2026-63829 Référence CVE CVE-2026-63830 https://www.cve.org/CVERecord?id=CVE-2026-63830 Référence CVE CVE-2026-63831 https://www.cve.org/CVERecord?id=CVE-2026-63831 Référence CVE CVE-2026-63834 https://www.cve.org/CVERecord?id=CVE-2026-63834 Référence CVE CVE-2026-63835 https://www.cve.org/CVERecord?id=CVE-2026-63835 Référence CVE CVE-2026-63836 https://www.cve.org/CVERecord?id=CVE-2026-63836 Référence CVE CVE-2026-64187 https://www.cve.org/CVERecord?id=CVE-2026-64187 Référence CVE CVE-2026-64188 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0957Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-63807 Référence CVE CVE-2026-63808 https://www.cve.org/CVERecord?id=CVE-2026-63808 Référence CVE CVE-2026-63809 https://www.cve.org/CVERecord?id=CVE-2026-63809 Référence CVE CVE-2026-63814 https://www.cve.org/CVERecord?id=CVE-2026-63814 Référence CVE CVE-2026-63817 https://www.cve.org/CVERecord?id=CVE-2026-63817 Référence CVE CVE-2026-63822 https://www.cve.org/CVERecord?id=CVE-2026-63822 Référence CVE CVE-2026-63823 https://www.cve.org/CVERecord?id=CVE-2026-63823 Référence CVE CVE-2026-63824 https://www.cve.org/CVERecord?id=CVE-2026-63824 Référence CVE CVE-2026-63827 https://www.cve.org/CVERecord?id=CVE-2026-63827 Référence CVE CVE-2026-63828 https://www.cve.org/CVERecord?id=CVE-2026-63828 Référence CVE CVE-2026-63830 https://www.cve.org/CVERecord?id=CVE-2026-63830 Référence CVE CVE-2026-63831 https://www.cve.org/CVERecord?id=CVE-2026-63831 Référence CVE CVE-2026-63833 https://www.cve.org/CVERecord?id=CVE-2026-63833 Référence CVE CVE-2026-63834 https://www.cve.org/CVERecord?id=CVE-2026-63834 Référence CVE CVE-2026-63835 https://www.cve.org/CVERecord?id=CVE-2026-63835 Référence CVE CVE-2026-63836 https://www.cve.org/CVERecord?id=CVE-2026-63836 Référence CVE CVE-2026-64188 https://www.cve.org/CVERecord?id=CVE-2026-64188 Référence CVE CVE-2026-64191 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.
Fix availability varies by product
Affected
Fixed
Linux: < 3.6, 5.10.261 ≤ 5.10.*, 5.15.212 ≤ 5.15.*, 6.1.177 ≤ 6.1.*, 6.6.144 ≤ 6.6.*, 6.12.95 ≤ 6.12.*, 6.18.38 ≤ 6.18.*, 7.1.3 ≤ 7.1.*, 7.2 ≤ *
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 19 Jul 2026 · Last source change 17 Aug 2026, 04:51 UTC · CWE not yet assigned

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-2026-45494
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceUnavailable
NVD statusNVD awaiting enrichment

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

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-2026-45494↗Vendor CSAF · SUSE Product Security Team↗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-2026-63828 · cve.blacktree.nl