CVE-2026-81002 Linux Kernel - Memory Corruption

Linux kernel contains a memory corruption vulnerability in xdp_convert_zc_to_xdp_frame caused by improper zero-copy frame layout handling in AF_XDP packets redirected through cpumap, letting attackers cause kernel panic or memory corruption, exploit requires use of AF_XDP zero-copy with cpumap redirection.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
EPSS
0.51% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Memory Corruption
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
11 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for zero-copy frame layout in xdp_convert_zc_to_xdp_frame.

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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