CVE-2026-97602 Linux Kernel - Heap Corruption & Privilege Escalation

Linux kernel contains a heap corruption vulnerability caused by stale IPv6 fragment reassembly metadata reuse in inet frags queues, letting local attackers escalate privileges in unprivileged network namespaces, exploit requires local access with network namespace capabilities.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.15% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Heap Corruption
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
25 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for inet frags queue invalidation.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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