CVE-2026-63924

CRITICAL 9.8CVE-2026-63924 · Published 19/07/2026 · updated 22/10/2026

In short

CVE-2026-63924 is a CRITICAL (CVSS 9.8) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.71%, higher than 53.7% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

Description

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() ipv6_hop_jumbo() calls pskb_trim_rcsum(), which can change skb pointers. Let's recompute nh pointer to make sure any change won't mess things up.

References

git.kernel.org/stable/c/2b56bbd928c030894c270cd33d60286326919458 · Patch
git.kernel.org/stable/c/645b99b1a185c91a79bdac4c5de0f91b212d64f0 · Patch
git.kernel.org/stable/c/72af7beae774e46ed543f3f2f267bf0a141bfcdd · Patch
git.kernel.org/stable/c/9e883eaa878f4337b5873c706efb5a192364ed18 · Patch
git.kernel.org/stable/c/b3ac54e5c905f86d22b502eacb5686a282c5659f · Patch
git.kernel.org/stable/c/bddaa4dfc7f36e1ee343a0622f69288af2b9ace9 · Patch
git.kernel.org/stable/c/c512e1c819dfbf6ae95ee7a44b65b9ad98979157 · Patch
git.kernel.org/stable/c/d47548a36639095939f4747d4c43f2271366f565 · Patch

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