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VulnerabilityPublished Updated

CVE-2026-23010: Linux kernel · ipv6: Fix use-after-free in inet6_addr_del().

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · CVSS 7.8 High · fixed in ddf96c393a33aef4887e2e406c76c2f8cda1419c : patch Linux kernel soon.

Data as of 10 Nov 2026, 13:02 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (Linux)CVSS 3.17.8
Patch
Available – fixed in ddf96c393a33aef4887e2e406c76c2f8cda1419c, 2684610a9c9c53f262fd864fa5c407e79f304804, 9356b69d03d0f50cce91cebdabd33dda023fbd64 +6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 10 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=6.1.120 <6.1.162
  • >=6.6.64 <6.6.122
  • >=6.12.2 <6.12.67
  • >=6.11.11 <6.12
Fixed in
  • ddf96c393a33aef4887e2e406c76c2f8cda1419c
  • 2684610a9c9c53f262fd864fa5c407e79f304804
  • 9356b69d03d0f50cce91cebdabd33dda023fbd64
  • 8b6dcb565e419846bd521e31d5e1f98e4d0e1179
  • 6e89d60b4f03014f7d412ce64b17a840840d490e
  • 6.12.67
  • 6.12
  • 6.6.122
  • 6.1.162
LinuxLinuxAffected
  • =6.13
Fixed in–

AI-suggested

This vulnerability has been fixed in Linux kernel versions 6.1.162, 6.6.122, 6.12.67, 6.12, and 6.13. Users and administrators should update to these or later kernel versions to remediate the issue. No additional mitigation steps are required beyond applying the official patches.

Description

CVE-2026-23010 is a use-after-free vulnerability in the Linux kernel's IPv6 implementation, specifically in the inet6_addr_del() function. The flaw was introduced by a code change that reordered the call to ipv6_del_addr(), causing a use-after-free condition when deleting IPv6 addresses. This vulnerability has been fixed in multiple Linux kernel versions.

References

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