CVE-2026-53268 Details
Description
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.
A vulnerability allowing a possible out-of-bounds read has been identified in the Linux kernel's netfilter component, specifically within the IRC connection tracking helper. This issue arises when the parser fails after matching a command string, leading to an improper attempt to match a different command instead of exiting the parsing process. The vulnerability is present in the Linux kernel stable group through 2026.
Users can upgrade to the latest version of the Linux kernel stable tree, where this vulnerability has been fixed. Instructions for downloading the patched version are available in the Linux kernel Git repository.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-125 | Out-of-bounds Read | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.20, < 5.10.259 >= 5.11, < 5.15.210 >= 5.16, < 6.1.176 >= 6.2, < 6.6.143 >= 6.7, < 6.12.94 >= 6.13, < 6.18.36 >= 6.19, < 7.0.13 7.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4 7.1 rc5 7.1 rc6 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 8, 2026 | CVE Modified | kernel.org |
| Sep 8, 2026 | CVE Modified | siemens-SADP |
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 28, 2026 | CVE Modified | kernel.org |
| Jun 25, 2026 | New CVE Received | kernel.org |