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Vulnerability record · CVE-2026-63924 · published 19 July 2026

CVE-2026-63924: In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh pointer after i…

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.

9.8 CVSS 3.1 Critical EPSS 0.71% · top 48.2% Awaiting Analysis
9.8CVSS 3.1 base score
0.71%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
8References
27 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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Source: NIST National Vulnerability Database (record CVE-2026-63924), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.