---
title: "CVE-2026-99011: Linux Kernel Bluetooth SCO - Use After Free"
description: "Linux kernel contains a use-after-free vulnerability in Bluetooth SCO due to improper locking around sco_conn lifetime management, letting attackers cause kernel crashes or memory corruption, exploit requires Bluetooth SCO usage."
url: https://panop.io/threat-heartbeat/CVE-2026-99011/
---

# CVE-2026-99011 Linux Kernel Bluetooth SCO - Use After Free

Linux kernel contains a use-after-free vulnerability in Bluetooth SCO due to improper locking around sco\_conn lifetime management, letting attackers cause kernel crashes or memory corruption, exploit requires Bluetooth SCO usage.

CVSS base score 7.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.21% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-99011)

## Details

Type

Use After Free

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Published

23 October 2026

Updated

25 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the fix for SCO connection lifetime serialization.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-99011](https://nvd.nist.gov/vuln/detail/CVE-2026-99011)
- [https://git.kernel.org/stable/c/816fb1590a4c8cf8d05cd076057616be02e276f0](https://git.kernel.org/stable/c/816fb1590a4c8cf8d05cd076057616be02e276f0)
- [https://git.kernel.org/stable/c/8a98d58f6cfe70d51138cd9ce894e72671d95f8a](https://git.kernel.org/stable/c/8a98d58f6cfe70d51138cd9ce894e72671d95f8a)
- [https://git.kernel.org/stable/c/b108ea7ebba147465f4158d8133f0e8f013762ed](https://git.kernel.org/stable/c/b108ea7ebba147465f4158d8133f0e8f013762ed)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)