ZDI-26-589: BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Aug 24, 2026 · Catalog

   Detected

   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 ZDI has assigned a CVSS rating of 7.1. The following CVEs are assigned: CVE-2026-19774.

Sources

• CVE.orgVulnerability recordCVE-2026-19774

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2026-19774

  30-day exploitation probability 0.3%

  first.org
• Ubuntu Security NoticesVendor advisoryCVE-2026-19774

  USN-8908-1 fixed vulnerabilities in BlueZ. Unfortunately, that update introduced a regression in the A2DP profile: cached remote stream endpoints were no longer loaded at startup, which could cause Bluetooth audio devices to fail to reconnect automatically or to fall back to low-

  ubuntu.com
• Zero Day InitiativeCoordinated disclosureZDI-26-589

  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 ZDI has assigned a CVSS rating of 7.1. The following CVEs are assigned: CVE-2026-19774.

  zerodayinitiative.com