Vulnerability DatabaseCVE-2025-52496
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CVE-2025-52496
July 04, 2025
Mbed TLS before 3.6.4 has a race condition in AESNI detection if certain compiler optimizations occur. An attacker may be able to extract an AES key from a multithreaded program, or perform a GCM forgery.
Affected Packages
https://github.com/Mbed-TLS/mbedtls.git (GITHUB):
Affected version(s) >=v2.7.16 <v3.6.4
Fix Suggestion:
Update to version v3.6.4
Related Resources (4)
https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html
https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-1.md
https://security-tracker.debian.org/tracker/CVE-2025-52496
https://security.alpinelinux.org/vuln/CVE-2025-52496
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CVSS v4
Base Score:
8.7
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Compiler Optimization Removal or Modification of Security-critical Code
CWE-733
EPSS
Base Score:
0.03