# media: v4l2-ctrls: validate HEVC EXT SPS RPS counts

CVE record · `CVE-2026-89873`

- **Identifiers:** `CVE-2026-89873`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:31 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: `c9a59dc2acc72789d5c778af080d1e65af84862c to before 30f85a7c59113a8844b276efc010085a34f912e9` (git)
  - affected: `c9a59dc2acc72789d5c778af080d1e65af84862c to before 796b5c6d4f1615d59d5d8fe5a38fae6bfdfe878e` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `7.0`
  - unaffected: `before 7.0` (semver)
  - unaffected: `7.2.5 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0016, the 5th 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89873](https://www.cve.org/CVERecord?id=CVE-2026-89873)
- [NVD: CVE-2026-89873](https://nvd.nist.gov/vuln/detail/CVE-2026-89873)

### References from the CNA

- <https://git.kernel.org/stable/c/30f85a7c59113a8844b276efc010085a34f912e9>
- <https://git.kernel.org/stable/c/796b5c6d4f1615d59d5d8fe5a38fae6bfdfe878e>

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-2026-89873>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89873/>. Everything for agents: <https://agentprime.io/llms.txt>.