# neigh: let neigh_xmit take skb ownership

CVE record · `CVE-2026-52981`

- **Identifiers:** `CVE-2026-52981`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-401](https://cwe.mitre.org/data/definitions/401.html)
- **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Jun 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Jun 2026, 16:28 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.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62 to before 8a89054a1ec0767aec25ed2bbac933da6ba3cf5a` (git)
  - affected: `4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62 to before 9247d59ca15bf60a57dca08103f055d8a4340877` (git)
  - affected: `4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62 to before 0084712e0bee204b284510cdb63182fd5a30c2b7` (git)
  - affected: `4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62 to before 63063ba60d2dc334e34f1e3f9271d7f3f6f30307` (git)
  - affected: `4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62 to before 445e45a2c3a078316a62d2d331a570cf34ef5079` (git)
  - affected: `4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62 to before 4438113be604ee67a7bf4f81da6e1cca41332ce4` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.1`
  - unaffected: `before 4.1` (semver)
  - unaffected: `6.1.175 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.141 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.91 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.33 to 6.18.*, inclusive` (semver)
  - unaffected: `7.0.10 to 7.0.*, inclusive` (semver)
  - unaffected: `7.1 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0053, the 45th percentile, on 15 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 24 Jun 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-52981](https://www.cve.org/CVERecord?id=CVE-2026-52981)
- [NVD: CVE-2026-52981](https://nvd.nist.gov/vuln/detail/CVE-2026-52981)

### References from the CNA

- <https://git.kernel.org/stable/c/8a89054a1ec0767aec25ed2bbac933da6ba3cf5a>
- <https://git.kernel.org/stable/c/9247d59ca15bf60a57dca08103f055d8a4340877>
- <https://git.kernel.org/stable/c/0084712e0bee204b284510cdb63182fd5a30c2b7>
- <https://git.kernel.org/stable/c/63063ba60d2dc334e34f1e3f9271d7f3f6f30307>
- <https://git.kernel.org/stable/c/445e45a2c3a078316a62d2d331a570cf34ef5079>
- <https://git.kernel.org/stable/c/4438113be604ee67a7bf4f81da6e1cca41332ce4>

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-2026-52981>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-52981/>. Everything for agents: <https://agentprime.io/llms.txt>.