BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. (CVE-2026-19774)
CVE-2026-19774 is a high-severity buffer overflow vulnerability in the BlueZ A2DP stack that allows remote code execution. The flaw arises from improper validation of user-supplied data length when handling stream endpoints, enabling a network-adjacent attacker to execute arbitrary code with root privileges. Exploitation requires the attacker to pair a malicious Bluetooth device with the target system first.
AI Analysis
Technical Summary
This vulnerability in BlueZ's A2DP stack is a stack-based buffer overflow caused by insufficient validation of the length of user-supplied data before copying it into a fixed-length stack buffer. An attacker who can pair a malicious Bluetooth device with the target can exploit this flaw to execute arbitrary code as root. The CVSS 3.0 score is 7.1, reflecting high impact on confidentiality, integrity, and availability. The vulnerability is identified as CWE-121 (stack-based buffer overflow). No patch or remediation information is provided in the input data.
Potential Impact
Successful exploitation allows an attacker with the ability to pair a Bluetooth device to execute arbitrary code with root privileges on the affected system. This compromises system confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict Bluetooth pairing to trusted devices only and monitor for unauthorized pairing attempts.
BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. (CVE-2026-19774)
Description
CVE-2026-19774 is a high-severity buffer overflow vulnerability in the BlueZ A2DP stack that allows remote code execution. The flaw arises from improper validation of user-supplied data length when handling stream endpoints, enabling a network-adjacent attacker to execute arbitrary code with root privileges. Exploitation requires the attacker to pair a malicious Bluetooth device with the target system first.
CVSS v3.0
Score 7.1high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in BlueZ's A2DP stack is a stack-based buffer overflow caused by insufficient validation of the length of user-supplied data before copying it into a fixed-length stack buffer. An attacker who can pair a malicious Bluetooth device with the target can exploit this flaw to execute arbitrary code as root. The CVSS 3.0 score is 7.1, reflecting high impact on confidentiality, integrity, and availability. The vulnerability is identified as CWE-121 (stack-based buffer overflow). No patch or remediation information is provided in the input data.
Potential Impact
Successful exploitation allows an attacker with the ability to pair a Bluetooth device to execute arbitrary code with root privileges on the affected system. This compromises system confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict Bluetooth pairing to trusted devices only and monitor for unauthorized pairing attempts.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-53cx-rp5p-x795
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-19774"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.0
Threat ID: 6aaa080855bf5e2cf5ea47f8
Added to database: 09/16/2026, 03:07:52 UTC
Last enriched: 09/16/2026, 05:02:50 UTC
Last updated: 09/16/2026, 22:01:33 UTC
Views: 15
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