# crypto: krb5 - use kfree_sensitive() for derived key buffers

CVE record · `CVE-2026-80924`

- **Identifiers:** `CVE-2026-80924`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 9 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 9 Sept 2026, 16:19 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: `3936f02bf2d3308a7359dd37dd96cd60603d8170 to before 731a5b6fb4c1705f9405d9029dd64ea81e336207` (git)
  - affected: `3936f02bf2d3308a7359dd37dd96cd60603d8170 to before 91b96dc9cc250cd16751f53de525cf3442ca0962` (git)
  - affected: `3936f02bf2d3308a7359dd37dd96cd60603d8170 to before a1bf79365794783b19f5b09e8a23f7ee311e8931` (git)
  - affected: `3936f02bf2d3308a7359dd37dd96cd60603d8170 to before f7d53dd3f267e46a784f219a75072f2f400d42b9` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.15`
  - unaffected: `before 6.15` (semver)
  - unaffected: `6.18.49 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.13 to 7.1.*, inclusive` (semver)
  - unaffected: `7.2.3 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0032, the 25th 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 9 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-80924](https://www.cve.org/CVERecord?id=CVE-2026-80924)
- [NVD: CVE-2026-80924](https://nvd.nist.gov/vuln/detail/CVE-2026-80924)

### References from the CNA

- <https://git.kernel.org/stable/c/731a5b6fb4c1705f9405d9029dd64ea81e336207>
- <https://git.kernel.org/stable/c/91b96dc9cc250cd16751f53de525cf3442ca0962>
- <https://git.kernel.org/stable/c/a1bf79365794783b19f5b09e8a23f7ee311e8931>
- <https://git.kernel.org/stable/c/f7d53dd3f267e46a784f219a75072f2f400d42b9>

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-2026-80924>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80924/>. Everything for agents: <https://agentprime.io/llms.txt>.