# Bluetooth: btnxpuart: Validate the FW dump header length

CVE record · `CVE-2026-90089`

- **Identifiers:** `CVE-2026-90089`
- **State:** Confirmed
- **Severity:** CVSS 7.1 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:06 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: `998e447f443f138c90faa6ff3845082af419070e to before a644b8df94966b672ac656577df98bd01bc88393` (git)
  - affected: `998e447f443f138c90faa6ff3845082af419070e to before 22d419db7f9a01bea22cfcf66774d2b2fd4bb354` (git)
  - affected: `998e447f443f138c90faa6ff3845082af419070e to before 060fa7592bdc043a93b6b7870f5b8551206d315d` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.15`
  - unaffected: `before 6.15` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 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:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0033, the 26th percentile, on 13 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90089](https://www.cve.org/CVERecord?id=CVE-2026-90089)
- [NVD: CVE-2026-90089](https://nvd.nist.gov/vuln/detail/CVE-2026-90089)

### References from the CNA

- <https://git.kernel.org/stable/c/a644b8df94966b672ac656577df98bd01bc88393>
- <https://git.kernel.org/stable/c/22d419db7f9a01bea22cfcf66774d2b2fd4bb354>
- <https://git.kernel.org/stable/c/060fa7592bdc043a93b6b7870f5b8551206d315d>

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-2026-90089>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90089/>. Everything for agents: <https://agentprime.io/llms.txt>.