Vulnerability Monitor

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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.

Published

2025-07-04T15:15:22.633

Last Modified

2025-11-03T20:19:13.020

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

Weaknesses

Type: Secondary
CWE-733

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	arm	mbed_tls	< 3.6.4	Yes

References

https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-1.md Exploit, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-1.md Exploit, Third Party Advisory (134c704f-9b21-4f2e-91b3-4a467353bcc0)