CVE-2026-19774

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 v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

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

Exploitability : 1.2 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/bluez/bluez/pull/2251
https://www.zerodayinitiative.com/advisories/ZDI-26-589/

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-15 19:17

Updated : 2026-09-16 04:18

NVD link : CVE-2026-19774

Mitre link : CVE-2026-19774

CVE.ORG link : CVE-2026-19774

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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