CVE-2026-45850
In the Linux kernel, the following vulnerability has been resolved: ipvs: skip ipv6 extension headers for csum checks Protocol checksum validation fails for IPv6 if there are extension headers before the protocol header. iph->len already contains its offset, so use it to fix the problem.
Affected versions
Linux kernel versions
2.6.28
and later are affected. Fixed in
6.19.4,
7.0
and their respective stable series.
References
The following references provide additional information about CVE-2026-45850 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/05cfe9863ef049d98141dc2969eefde72fb07625
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PatchKernel patch commithttps://git.kernel.org/stable/c/a3ca27762ce8476b4fbf9b2a8f5cb74c38e483e4
Frequently asked questions
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What is CVE-2026-45850?
CVE-2026-45850 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.28 onward and has been patched in 6.19.4 and 7.0. CVE-2026-45850 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-45850?
Yes — CVE-2026-45850 has been patched. Fixed versions include 6.19.4 and 7.0. If you are running Linux kernel 2.6.28 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-45850 actively exploited?
No — CVE-2026-45850 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.