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Linux kernel upstream security patch release for CVE-2026-53264

Security Patch Release
First reported
Last updated
Happening score
H score 32
1 unique sources, 1 articles

Summary

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Linux kernel maintainers have backported CVE-2026-53264 fixes across stable branches, closing a local privilege-escalation path that can turn a local user into root on affected builds. Fixed releases include 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, and 7.0.13, with the mainline fix entering 7.1-rc7. Administrators are being told to install a distribution kernel carrying the fix rather than rely on the upstream version number alone.

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H score34 First: 22.07.2026 13:50 Last: 22.07.2026 13:50 Sources 1

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Security Patch Release
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Open Happening

Timeline

  1. 28.07.2026 11:04 1 articles · 3h ago

    Linux kernel upstream fix lands for CVE-2026-53264

    Mitigation Patch Update

    Linux kernel maintainers land the upstream fix for CVE-2026-53264, a use-after-free race in the network traffic-control subsystem that can be abused for local privilege escalation on affected builds, and begin backporting it to stable branches.

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  2. 28.07.2026 11:04 2 articles · 3h ago

    Debian, Ubuntu, and SUSE show uneven kernel fix coverage for CVE-2026-53264

    Mitigation Patch Update

    As of July 28, 2026, Debian lists fixed kernels for supported stable releases, Ubuntu still marks multiple maintained kernel packages vulnerable, and SUSE lists CVE-2026-53264 as pending across multiple products; administrators are advised to install a distribution kernel carrying the fix rather than rely on the upstream version number alone.

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