# xdp: fix zero-copy frame layout

CVE record · `CVE-2026-81002`

- **Identifiers:** `CVE-2026-81002`
- **State:** Confirmed
- **Severity:** CVSS 9.8 Critical
- **Critical:** Yes: CVSS 9+
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:42 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Critical

Critical, because:

- CVSS score 9.8: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `b0d1beeff2a97a0cf1965ea8f1d13b8973f22582 to before dcb6db9ca6515fcd3e00c93ec5e27dc7a0a7012f` (git)
  - affected: `b0d1beeff2a97a0cf1965ea8f1d13b8973f22582 to before 22092730129077c302d8c947bbe0876f0280c528` (git)
  - affected: `b0d1beeff2a97a0cf1965ea8f1d13b8973f22582 to before ced3e18cd9b9caf630aaa1e1eac305f5192ba896` (git)
  - affected: `b0d1beeff2a97a0cf1965ea8f1d13b8973f22582 to before 6de17275b3ccdf9887568b07e54da2e3597217cf` (git)
  - affected: `b0d1beeff2a97a0cf1965ea8f1d13b8973f22582 to before 444216dacdbebd3e52d5e704facafbb230da09e9` (git)
  - affected: `b0d1beeff2a97a0cf1965ea8f1d13b8973f22582 to before 15d1f3c0dbe7a740f779337deb39f23cd8d002c8` (git)
  - affected: `b0d1beeff2a97a0cf1965ea8f1d13b8973f22582 to before 68d7cc5512238693670fc19c7a615df631e10edf` (git)
  - affected: `b0d1beeff2a97a0cf1965ea8f1d13b8973f22582 to before 71283aaa6c65b3cec84caf1dc78560985737641f` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.20`
  - unaffected: `before 4.20` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.109 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 9.8 Critical, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0051, the 44th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-81002](https://www.cve.org/CVERecord?id=CVE-2026-81002)
- [NVD: CVE-2026-81002](https://nvd.nist.gov/vuln/detail/CVE-2026-81002)

### References from the CNA

- <https://git.kernel.org/stable/c/dcb6db9ca6515fcd3e00c93ec5e27dc7a0a7012f>
- <https://git.kernel.org/stable/c/22092730129077c302d8c947bbe0876f0280c528>
- <https://git.kernel.org/stable/c/ced3e18cd9b9caf630aaa1e1eac305f5192ba896>
- <https://git.kernel.org/stable/c/6de17275b3ccdf9887568b07e54da2e3597217cf>
- <https://git.kernel.org/stable/c/444216dacdbebd3e52d5e704facafbb230da09e9>
- <https://git.kernel.org/stable/c/15d1f3c0dbe7a740f779337deb39f23cd8d002c8>
- <https://git.kernel.org/stable/c/68d7cc5512238693670fc19c7a615df631e10edf>
- <https://git.kernel.org/stable/c/71283aaa6c65b3cec84caf1dc78560985737641f>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-81002>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-81002/>. Everything for agents: <https://agentprime.io/llms.txt>.