# nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge()

CVE record · `CVE-2026-98725`

- **Identifiers:** `CVE-2026-98725`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:47 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: `db1312dd95488b5e6ff362ff66fcf953a46b1821 to before e94ff1771c4cb398749789557f0b6feb871e3486` (git)
  - affected: `db1312dd95488b5e6ff362ff66fcf953a46b1821 to before ef4dfad231a787aded76e5b03788ddb18c8aebab` (git)
  - affected: `db1312dd95488b5e6ff362ff66fcf953a46b1821 to before 9d61131acd742cf97ee64e453383e41b46568513` (git)
  - affected: `db1312dd95488b5e6ff362ff66fcf953a46b1821 to before 7fd3c363eba4f2aceb4b3f31cd1cf65e0dcbaee4` (git)
  - affected: `db1312dd95488b5e6ff362ff66fcf953a46b1821 to before 8a9b4c0eef19c207663c1ee888257307c869ca86` (git)
  - affected: `db1312dd95488b5e6ff362ff66fcf953a46b1821 to before fa6778e030bed9841ddcdf96bc7018da9ac03562` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.0`
  - unaffected: `before 6.0` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.10 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:** 0.0021, the 11th percentile, on 7 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98725](https://www.cve.org/CVERecord?id=CVE-2026-98725)
- [NVD: CVE-2026-98725](https://nvd.nist.gov/vuln/detail/CVE-2026-98725)

### References from the CNA

- <https://git.kernel.org/stable/c/e94ff1771c4cb398749789557f0b6feb871e3486>
- <https://git.kernel.org/stable/c/ef4dfad231a787aded76e5b03788ddb18c8aebab>
- <https://git.kernel.org/stable/c/9d61131acd742cf97ee64e453383e41b46568513>
- <https://git.kernel.org/stable/c/7fd3c363eba4f2aceb4b3f31cd1cf65e0dcbaee4>
- <https://git.kernel.org/stable/c/8a9b4c0eef19c207663c1ee888257307c869ca86>
- <https://git.kernel.org/stable/c/fa6778e030bed9841ddcdf96bc7018da9ac03562>

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-2026-98725>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98725/>. Everything for agents: <https://agentprime.io/llms.txt>.