CVE-2026-63924: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo()
Published Jul 19, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
Affected Software
2 affected componentsFixes available
Linux Linux kernel
debian/linux
6.1.176-16.1.187-16.12.107-16.12.111-17.2.8-17.2.9-1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.187-1Fixed in 6.12.107-1Fixed in 6.12.111-1Fixed in 7.2.8-1Fixed in 7.2.9-1
Event History
Jul 19, 2026
CVE Published
via MITRE·02:55 PM
Data Sourced
via MITRE·02:55 PM
DescriptionSeverity
Data Sourced
via NVD·04:17 PM
DescriptionSeverity
Sep 24, 2026
Data Sourced
via Launchpad·04:09 PM
Description
Oct 2, 2026
Data Sourced
via Ubuntu·04:13 PM
RemedyDescriptionSeverityAffected Software
Oct 4, 2026
Data Sourced
via Debian·04:15 PM
DescriptionAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-63924?
CVE-2026-63924 has a critical severity rating of 9.8.
2
What is CVE-2026-63924 about?
CVE-2026-63924 is a vulnerability in the Linux kernel related to incorrect handling of the next header pointer during the ipv6_hop_jumbo() function.
3
How do I fix CVE-2026-63924?
To fix CVE-2026-63924, you should update to the latest patched version of the Linux kernel.
4
What systems are affected by CVE-2026-63924?
CVE-2026-63924 affects systems running vulnerable versions of the Linux kernel with IPv6 support.
5
Is there a workaround for CVE-2026-63924?
Currently, there are no known workarounds for CVE-2026-63924; applying the patch is the recommended method of mitigation.