# ipmi: ipmb: validate write message length

CVE record · `CVE-2026-81007`

- **Identifiers:** `CVE-2026-81007`
- **State:** Confirmed
- **Severity:** CVSS 7.1 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, 19:42 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.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `51bd6f291583684f495ea498984dfc22049d7fd2 to before 8990c7f6bfc1e7689b7012a7d4d0efb9f07a9c89` (git)
  - affected: `51bd6f291583684f495ea498984dfc22049d7fd2 to before 94f8d20153e348c79bc14dc25f873470518892da` (git)
  - affected: `51bd6f291583684f495ea498984dfc22049d7fd2 to before e527cd4e80066e1ed070fdc7c705bde340cdcc62` (git)
  - affected: `51bd6f291583684f495ea498984dfc22049d7fd2 to before 7d66d54b974cff0a959e188af844d2d110422767` (git)
  - affected: `51bd6f291583684f495ea498984dfc22049d7fd2 to before 60939bcda6f3f104ef456fdbf3cc5733c0720fb1` (git)
  - affected: `51bd6f291583684f495ea498984dfc22049d7fd2 to before 5719431ca2b5fa26560bb38f6202f8b97fa3bbb0` (git)
  - affected: `51bd6f291583684f495ea498984dfc22049d7fd2 to before a84c6e3d188f2c6e674910929eb790634299d6d5` (git)
  - affected: `51bd6f291583684f495ea498984dfc22049d7fd2 to before 53637506884dbd5c91a89b1a3547d99d80f8ed2c` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.3`
  - unaffected: `before 5.3` (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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0013, the 2nd 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-2026-81007](https://www.cve.org/CVERecord?id=CVE-2026-81007)
- [NVD: CVE-2026-81007](https://nvd.nist.gov/vuln/detail/CVE-2026-81007)

### References from the CNA

- <https://git.kernel.org/stable/c/8990c7f6bfc1e7689b7012a7d4d0efb9f07a9c89>
- <https://git.kernel.org/stable/c/94f8d20153e348c79bc14dc25f873470518892da>
- <https://git.kernel.org/stable/c/e527cd4e80066e1ed070fdc7c705bde340cdcc62>
- <https://git.kernel.org/stable/c/7d66d54b974cff0a959e188af844d2d110422767>
- <https://git.kernel.org/stable/c/60939bcda6f3f104ef456fdbf3cc5733c0720fb1>
- <https://git.kernel.org/stable/c/5719431ca2b5fa26560bb38f6202f8b97fa3bbb0>
- <https://git.kernel.org/stable/c/a84c6e3d188f2c6e674910929eb790634299d6d5>
- <https://git.kernel.org/stable/c/53637506884dbd5c91a89b1a3547d99d80f8ed2c>

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-2026-81007>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-81007/>. Everything for agents: <https://agentprime.io/llms.txt>.