# nfsd: reject out-of-range useconds in NFSv2 SETATTR/CREATE

CVE record · `CVE-2026-89665`

- **Identifiers:** `CVE-2026-89665`
- **State:** Confirmed
- **Severity:** CVSS 8.2 High
- **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, 19:45 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: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before cdc3299f7072777b09c9582a3b8b65bb163ddcf3` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 09a79d9ab35a39603c834e8f6333603292f9c816` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 5296a2442d12d45d6eea7b4d3ec3ffecc1821cac` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 1db456ffc22e045f49f7b9e62415a26b3f33f200` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before a937dd1aa2d92291fe0a1860d17e90d8f206cd22` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before ad02d095439f89cbd6629420c7e3ba476457b83b` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 1195483965a5f63d2dde18054ec7e50a23b9071c` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 26709c8ffe73772eb69e68d553ac71d91228dccc` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.12`
  - unaffected: `before 2.6.12` (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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0062, the 50th 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-2026-89665](https://www.cve.org/CVERecord?id=CVE-2026-89665)
- [NVD: CVE-2026-89665](https://nvd.nist.gov/vuln/detail/CVE-2026-89665)

### References from the CNA

- <https://git.kernel.org/stable/c/cdc3299f7072777b09c9582a3b8b65bb163ddcf3>
- <https://git.kernel.org/stable/c/09a79d9ab35a39603c834e8f6333603292f9c816>
- <https://git.kernel.org/stable/c/5296a2442d12d45d6eea7b4d3ec3ffecc1821cac>
- <https://git.kernel.org/stable/c/1db456ffc22e045f49f7b9e62415a26b3f33f200>
- <https://git.kernel.org/stable/c/a937dd1aa2d92291fe0a1860d17e90d8f206cd22>
- <https://git.kernel.org/stable/c/ad02d095439f89cbd6629420c7e3ba476457b83b>
- <https://git.kernel.org/stable/c/1195483965a5f63d2dde18054ec7e50a23b9071c>
- <https://git.kernel.org/stable/c/26709c8ffe73772eb69e68d553ac71d91228dccc>

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-2026-89665>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89665/>. Everything for agents: <https://agentprime.io/llms.txt>.