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CVE-2026-53268

netfilter: conntrack_irc: fix possible out-of-bounds read

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack_irc: fix possible out-of-bounds read When parsing fails after we've matched the command string we should bail out instead of trying to match a different command. This helper should be deprecated, given prevalence of TLS I doubt it has any relevance in 2026.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From 869f37d8e48f3911eb70f38a994feaa8f8380008 · fixed in 4cdda7f868f48e2f81579371584fdbdce37df2c8; From 869f37d8e48f3911eb70f38a994feaa8f8380008 · fixed in 8a1d6e40dedfe1068aee094d851bd69e289c9fd6; From 869f37d8e48f3911eb70f38a994feaa8f8380008 · fixed in 0afc802160af0df61ed374fdb97fb34cfe5cdf2f; From 869f37d8e48f3911eb70f38a994feaa8f8380008 · fixed in 7c34f91305292083253df6a9f6c8ede02d4ccaea; From 869f37d8e48f3911eb70f38a994feaa8f8380008 · fixed in ddddd8271359961e403d11c90c9ba9fc38914f7e; From 869f37d8e48f3911eb70f38a994feaa8f8380008 · fixed in 9e5da2379f968a3ea5a6e38921ab6201576466dc; From 869f37d8e48f3911eb70f38a994feaa8f8380008 · fixed in 573810f61bcd6b6815e2ff53bbdd2b9c9d747176; From 869f37d8e48f3911eb70f38a994feaa8f8380008 · fixed in 66eba0ffce3b7e11449946b4cbbef8ea36112f56

  • Linux Linux

    2.6.20

  • KernelLinux

    From 2.6.20 · fixed in 5.10.259; From 5.11.0 · fixed in 5.15.210; From 5.16.0 · fixed in 6.1.176; From 6.2.0 · fixed in 6.6.143; From 6.7.0 · fixed in 6.12.94; From 6.13.0 · fixed in 6.18.36; From 6.19.0 · fixed in 7.0.13

References 8

git.kernel.org