VulnerabilityPublished 15 Aug 2026Updated 6 Nov 2026

CVE-2026-72447: Linux kernel · sctp: hold socket lock when dumping endpoints in sctp_diag

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in f98c294a9369b6fe89e652c06357ee594be4dfa2 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 18:11 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in f98c294a9369b6fe89e652c06357ee594be4dfa2, f09a245f33e567b604efa1960b7a2d25dd9c8713, ec3c2d59a192e17e1014ba71afc368ba162ecac3 +5

Exploitation evidence

Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 8f840e47f190cbe61a96945c13e9551048d42cef, < f98c294a9369b6fe89e652c06357ee594be4dfa2	Fixed in f98c294a9369b6fe89e652c06357ee594be4dfa2
LinuxLinux	Affected ≥ 8f840e47f190cbe61a96945c13e9551048d42cef, < f09a245f33e567b604efa1960b7a2d25dd9c8713	Fixed in f09a245f33e567b604efa1960b7a2d25dd9c8713
LinuxLinux	Affected ≥ 8f840e47f190cbe61a96945c13e9551048d42cef, < ec3c2d59a192e17e1014ba71afc368ba162ecac3	Fixed in ec3c2d59a192e17e1014ba71afc368ba162ecac3
LinuxLinux	Affected ≥ 8f840e47f190cbe61a96945c13e9551048d42cef, < abe7f8828e6ac8be858870c2bf836258844f97d5	Fixed in abe7f8828e6ac8be858870c2bf836258844f97d5
LinuxLinux	Affected ≥ 8f840e47f190cbe61a96945c13e9551048d42cef, < 722576aba0a6d9423714550b1c03239b0f0def77	Fixed in 722576aba0a6d9423714550b1c03239b0f0def77
LinuxLinux	Affected ≥ 8f840e47f190cbe61a96945c13e9551048d42cef, < 207bb4ce8fe7de961ae7bb33569ad2cd61f44954	Fixed in 207bb4ce8fe7de961ae7bb33569ad2cd61f44954

AI-suggested

A fix is available and has been applied in multiple Linux kernel commits. Users and administrators should update to a Linux kernel version that includes these fixes. Since this is a kernel-level vulnerability, applying the official kernel patches or upgrading to a fixed kernel release is the recommended remediation. No additional mitigation steps are indicated.

Description

A vulnerability in the Linux kernel SCTP implementation allowed concurrent access to endpoint address lists without proper locking, leading to a potential information leak of uninitialized memory to userspace. This was due to the SCTP_DIAG endpoint dumping traversing address lists without holding the socket lock, causing a race condition. The issue has been fixed by introducing proper locking and traversal mechanisms.

Impact

The vulnerability could lead to leakage of uninitialized kernel memory to userspace processes, potentially exposing sensitive information. This is due to a race condition in the SCTP diagnostic endpoint dumping code where concurrent modifications to endpoint address lists were not properly synchronized. There is no indication of code execution or privilege escalation. No known exploits in the wild have been reported.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 6 Nov 2026, 18:11 UTC

Technical details

References

Community reviews

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