# Bluetooth: RFCOMM: serialize security confirmation handling

CVE record · `CVE-2026-89569`

- **Identifiers:** `CVE-2026-89569`
- **State:** Confirmed
- **Severity:** CVSS 8.8 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, 19:44 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: `08c30aca9e698faddebd34f81e1196295f9dc063 to before 62ce8b33eb238cf18c15207332fbdc26d858f592` (git)
  - affected: `08c30aca9e698faddebd34f81e1196295f9dc063 to before 3873f3449701b3dc98cba577923be6493598e7a1` (git)
  - affected: `08c30aca9e698faddebd34f81e1196295f9dc063 to before 7ded3264106418c6456ccceaafd9fda596ce12c3` (git)
  - affected: `08c30aca9e698faddebd34f81e1196295f9dc063 to before 82425b14f0fb22e46cfddc56d6465570f5ed0ce6` (git)
  - affected: `08c30aca9e698faddebd34f81e1196295f9dc063 to before 1b7841ffad08e911e8c4b9470f3fa08423568940` (git)
  - affected: `08c30aca9e698faddebd34f81e1196295f9dc063 to before 946d76db77ee5f922968ce558629ae47b381e3fc` (git)
  - affected: `08c30aca9e698faddebd34f81e1196295f9dc063 to before fbf7961964a6e93360179f64712320ae9a1e9577` (git)
  - affected: `08c30aca9e698faddebd34f81e1196295f9dc063 to before 759c185d0bbdb131357408f50b8735e04ed3caff` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.10`
  - unaffected: `before 3.10` (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

- 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:** 0.0034, the 28th 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-2026-89569](https://www.cve.org/CVERecord?id=CVE-2026-89569)
- [NVD: CVE-2026-89569](https://nvd.nist.gov/vuln/detail/CVE-2026-89569)

### References from the CNA

- <https://git.kernel.org/stable/c/62ce8b33eb238cf18c15207332fbdc26d858f592>
- <https://git.kernel.org/stable/c/3873f3449701b3dc98cba577923be6493598e7a1>
- <https://git.kernel.org/stable/c/7ded3264106418c6456ccceaafd9fda596ce12c3>
- <https://git.kernel.org/stable/c/82425b14f0fb22e46cfddc56d6465570f5ed0ce6>
- <https://git.kernel.org/stable/c/1b7841ffad08e911e8c4b9470f3fa08423568940>
- <https://git.kernel.org/stable/c/946d76db77ee5f922968ce558629ae47b381e3fc>
- <https://git.kernel.org/stable/c/fbf7961964a6e93360179f64712320ae9a1e9577>
- <https://git.kernel.org/stable/c/759c185d0bbdb131357408f50b8735e04ed3caff>

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-2026-89569>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89569/>. Everything for agents: <https://agentprime.io/llms.txt>.