CVE-2025-52496

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.

Scoring

Severity
HIGH
CVSS base score
7.8
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
EPSS probability
0.19%
CWE
CWE-733
Published
2025-07-04
Last modified
2026-03-13

Affected products

Weakness type

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