# media: vicodec: fix out-of-bounds write in FWHT encoder

CVE record · `CVE-2026-89724`

- **Identifiers:** `CVE-2026-89724`
- **State:** Confirmed
- **Severity:** CVSS 7.8 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, 19:46 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: `16ecf6dff97ce0194a7126e26159492668d47a7e to before f7ae26c100a6c26c2a166d2c41e73188067b36bd` (git)
  - affected: `16ecf6dff97ce0194a7126e26159492668d47a7e to before 6ea647e76c44387d5c1c635df4604c2154d9060e` (git)
  - affected: `16ecf6dff97ce0194a7126e26159492668d47a7e to before d40838a63f2bd6a3df0a6cdd8ff1d5c6366e8fff` (git)
  - affected: `16ecf6dff97ce0194a7126e26159492668d47a7e to before e21cccc29b840930cd9dcfdf1139658063a681af` (git)
  - affected: `16ecf6dff97ce0194a7126e26159492668d47a7e to before 84cfebf7f4229d748cca8eb9c4e1f1c4099d3ab7` (git)
  - affected: `16ecf6dff97ce0194a7126e26159492668d47a7e to before 8c14472431e27f13661d0db9d837156eaced0ecb` (git)
  - affected: `16ecf6dff97ce0194a7126e26159492668d47a7e to before b95315ffc66b39856396c1043618bb4e4d5785ba` (git)
  - affected: `16ecf6dff97ce0194a7126e26159492668d47a7e to before cf4500ebf6fb57bf4ab83c3dd349a40257dbe2a9` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.0`
  - unaffected: `before 5.0` (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

- 7.8 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:** 0.0017, the 6th 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-2026-89724](https://www.cve.org/CVERecord?id=CVE-2026-89724)
- [NVD: CVE-2026-89724](https://nvd.nist.gov/vuln/detail/CVE-2026-89724)

### References from the CNA

- <https://git.kernel.org/stable/c/f7ae26c100a6c26c2a166d2c41e73188067b36bd>
- <https://git.kernel.org/stable/c/6ea647e76c44387d5c1c635df4604c2154d9060e>
- <https://git.kernel.org/stable/c/d40838a63f2bd6a3df0a6cdd8ff1d5c6366e8fff>
- <https://git.kernel.org/stable/c/e21cccc29b840930cd9dcfdf1139658063a681af>
- <https://git.kernel.org/stable/c/84cfebf7f4229d748cca8eb9c4e1f1c4099d3ab7>
- <https://git.kernel.org/stable/c/8c14472431e27f13661d0db9d837156eaced0ecb>
- <https://git.kernel.org/stable/c/b95315ffc66b39856396c1043618bb4e4d5785ba>
- <https://git.kernel.org/stable/c/cf4500ebf6fb57bf4ab83c3dd349a40257dbe2a9>

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-2026-89724>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-89724/>. Everything for agents: <https://agentprime.io/llms.txt>.