# media: cec: extron-da-hd-4k-plus: add sanity check

CVE record · `CVE-2026-89898`

- **Identifiers:** `CVE-2026-89898`
- **State:** Confirmed
- **Severity:** CVSS 8.8 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: `056f2821b631df2b94d3b017fd1e1eef918ed98d to before 00c13b4ab481a09d915d099815cff1b10926ddd9` (git)
  - affected: `056f2821b631df2b94d3b017fd1e1eef918ed98d to before 673611cc2ab9769929644ce879f7ea34932a3011` (git)
  - affected: `056f2821b631df2b94d3b017fd1e1eef918ed98d to before 7ad2fec276946a0dedfa54eb26fc38c4fc6a6034` (git)
  - affected: `056f2821b631df2b94d3b017fd1e1eef918ed98d to before abac9820b26b5cfcb01eb79efe2abdd0ac7e07c3` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.12`
  - unaffected: `before 6.12` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0038, the 32nd percentile, on 15 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-2026-89898](https://www.cve.org/CVERecord?id=CVE-2026-89898)
- [NVD: CVE-2026-89898](https://nvd.nist.gov/vuln/detail/CVE-2026-89898)

### References from the CNA

- <https://git.kernel.org/stable/c/00c13b4ab481a09d915d099815cff1b10926ddd9>
- <https://git.kernel.org/stable/c/673611cc2ab9769929644ce879f7ea34932a3011>
- <https://git.kernel.org/stable/c/7ad2fec276946a0dedfa54eb26fc38c4fc6a6034>
- <https://git.kernel.org/stable/c/abac9820b26b5cfcb01eb79efe2abdd0ac7e07c3>

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-2026-89898>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89898/>. Everything for agents: <https://agentprime.io/llms.txt>.