CVE-2026-19774
CVE-2026-19774 · BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability
This page contains facts from public vulnerability sources. Check the original advisory before updating.
BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the stream endpoints. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-29429.
CVSS 7.1 · High · EPSS 0.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
bluez
- Versions
- b138a0849ba26310c3f40e78037565ce274d8737: Affected
No fix published
bluez Debian:12
- Versions
- 5.66-1
- 5.66-1+deb12u1
- 5.66-1+deb12u2
- 5.68-1
- 5.68-2
- 5.69-1
- 5.70-1
- 5.70-1.1
- 5.70-1.1~exp0
- 5.71-1
- 5.73-1
- 5.73-1.1
- 5.77-1
- 5.79-1
- 5.79-2
- 5.82-1
- 5.82-1.1
- 5.83-1
- 5.83-1~exp1
- 5.84-1
- 5.85-1
- 5.85-2
- 5.85-3
- 5.85-4
- 5.87-1
- 5.87-2
- 5.87-3
- 5.87-4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bluez Debian:13
- Versions
- 5.82-1.1
- 5.83-1
- 5.83-1~exp1
- 5.84-1
- 5.85-1
- 5.85-2
- 5.85-3
- 5.85-4
- 5.87-1
- 5.87-2
- 5.87-3
- 5.87-4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bluez Debian:14
- Versions
- 5.82-1.1
- 5.83-1
- 5.83-1~exp1
- 5.84-1
- 5.85-1
- 5.85-2
- 5.85-3
- 5.85-4
- Affected ranges
- ECOSYSTEM: < 5.87-1
Update to 5.87-1
bluez Ubuntu:Pro:20.04:LTS
- Versions
- 5.50-0ubuntu4
- 5.51-0ubuntu1
- 5.51-0ubuntu2
- 5.52-0ubuntu1
- 5.52-0ubuntu2
- 5.53-0ubuntu1
- 5.53-0ubuntu2
- 5.53-0ubuntu3
- 5.53-0ubuntu3.1
- 5.53-0ubuntu3.2
- 5.53-0ubuntu3.3
- 5.53-0ubuntu3.4
- 5.53-0ubuntu3.5
- 5.53-0ubuntu3.6
- 5.53-0ubuntu3.7
- 5.53-0ubuntu3.8
- 5.53-0ubuntu3.9
- Affected ranges
- ECOSYSTEM: < 5.53-0ubuntu3.9+esm1
Update to 5.53-0ubuntu3.9+esm1
bluez Ubuntu:22.04:LTS
- Versions
- 5.60-0ubuntu2
- 5.62-0ubuntu1
- 5.62-0ubuntu2
- 5.63-0ubuntu1
- 5.63-0ubuntu2
- 5.64-0ubuntu1
- 5.64-0ubuntu1.1
- 5.64-0ubuntu1.3
- 5.64-0ubuntu1.4
- Affected ranges
- ECOSYSTEM: < 5.64-0ubuntu1.5
Update to 5.64-0ubuntu1.5
bluez Ubuntu:24.04:LTS
- Versions
- 5.68-0ubuntu1
- 5.70-0ubuntu1
- 5.70-0ubuntu2
- 5.70-0ubuntu3
- 5.71-0ubuntu3
- 5.71-1ubuntu2
- 5.71-1ubuntu3
- 5.72-0ubuntu1
- 5.72-0ubuntu3
- 5.72-0ubuntu4
- 5.72-0ubuntu5
- 5.72-0ubuntu5.1
- 5.72-0ubuntu5.3
- 5.72-0ubuntu5.4
- 5.72-0ubuntu5.5
- 5.72-0ubuntu5.6
- Affected ranges
- ECOSYSTEM: < 5.72-0ubuntu5.7
Update to 5.72-0ubuntu5.7
bluez Ubuntu:26.10
- Versions
- 5.85-4
- 5.85-4ubuntu1
- 5.87-1
- 5.87-2
- 5.87-3
- 5.87-4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bluez Ubuntu:26.04:LTS
- Versions
- 5.83-1~exp1
- 5.84-1
- 5.85-1
- 5.85-2
- 5.85-3
- 5.85-4
- 5.85-4ubuntu0.1
- 5.85-4ubuntu0.2
- Affected ranges
- ECOSYSTEM: < 5.85-4ubuntu0.3
Update to 5.85-4ubuntu0.3