# nfsd: validate sockaddr length per family in listener_set

CVE record · `CVE-2026-89700`

- **Identifiers:** `CVE-2026-89700`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **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, 19:46 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: `16a471177496c8e04a9793812c187a2c1a2192fa to before bf85a0f1e45258f90ceeec14772b5769697dfd75` (git)
  - affected: `16a471177496c8e04a9793812c187a2c1a2192fa to before 2aca70c18c5f5d06004122861fb151d5fcc57faf` (git)
  - affected: `16a471177496c8e04a9793812c187a2c1a2192fa to before 22d0e4752ca88fd84196d22ebeedc905e6540440` (git)
  - affected: `16a471177496c8e04a9793812c187a2c1a2192fa to before bdcc85c2b05a9378d8bd2d65f9fc41440a3cf464` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.10`
  - unaffected: `before 6.10` (semver)
  - unaffected: `6.12.111 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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th 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-2026-89700](https://www.cve.org/CVERecord?id=CVE-2026-89700)
- [NVD: CVE-2026-89700](https://nvd.nist.gov/vuln/detail/CVE-2026-89700)

### References from the CNA

- <https://git.kernel.org/stable/c/bf85a0f1e45258f90ceeec14772b5769697dfd75>
- <https://git.kernel.org/stable/c/2aca70c18c5f5d06004122861fb151d5fcc57faf>
- <https://git.kernel.org/stable/c/22d0e4752ca88fd84196d22ebeedc905e6540440>
- <https://git.kernel.org/stable/c/bdcc85c2b05a9378d8bd2d65f9fc41440a3cf464>

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-2026-89700>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89700/>. Everything for agents: <https://agentprime.io/llms.txt>.