CVE-2025-52496

State: Published
Severity: 7.8 High
Published: Jul 4, 2025
Updated: Nov 3, 2025
Reserved: Jun 17, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N	mitre

Weaknesses

CWE-733 Compiler Optimization Removal or Modification of Security-critical Code

Affected Products

Product	Versions
mbedtlsMbed	before 3.6.4Affected

References

https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-1.md
https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html

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