---
title: "CVE-2026-81002: Linux Kernel - Memory Corruption"
description: "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."
url: https://panop.io/threat-heartbeat/CVE-2026-81002/
---

# 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 ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-81002)

## 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

- [https://nvd.nist.gov/vuln/detail/CVE-2026-81002](https://nvd.nist.gov/vuln/detail/CVE-2026-81002)
- [https://git.kernel.org/stable/c/dcb6db9ca6515fcd3e00c93ec5e27dc7a0a7012f](https://git.kernel.org/stable/c/dcb6db9ca6515fcd3e00c93ec5e27dc7a0a7012f)
- [https://git.kernel.org/stable/c/15d1f3c0dbe7a740f779337deb39f23cd8d002c8](https://git.kernel.org/stable/c/15d1f3c0dbe7a740f779337deb39f23cd8d002c8)
- [https://git.kernel.org/stable/c/444216dacdbebd3e52d5e704facafbb230da09e9](https://git.kernel.org/stable/c/444216dacdbebd3e52d5e704facafbb230da09e9)
- [https://git.kernel.org/stable/c/68d7cc5512238693670fc19c7a615df631e10edf](https://git.kernel.org/stable/c/68d7cc5512238693670fc19c7a615df631e10edf)
- [https://git.kernel.org/stable/c/71283aaa6c65b3cec84caf1dc78560985737641f](https://git.kernel.org/stable/c/71283aaa6c65b3cec84caf1dc78560985737641f)
- [https://git.kernel.org/stable/c/22092730129077c302d8c947bbe0876f0280c528](https://git.kernel.org/stable/c/22092730129077c302d8c947bbe0876f0280c528)
- [https://git.kernel.org/stable/c/6de17275b3ccdf9887568b07e54da2e3597217cf](https://git.kernel.org/stable/c/6de17275b3ccdf9887568b07e54da2e3597217cf)
- [https://git.kernel.org/stable/c/ced3e18cd9b9caf630aaa1e1eac305f5192ba896](https://git.kernel.org/stable/c/ced3e18cd9b9caf630aaa1e1eac305f5192ba896)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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