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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.4 / Impact : 5.8

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-1.md	Third Party Advisory Exploit
https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-1.md	Third Party Advisory Exploit

Configurations

Configuration 1 (hide)

cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*

History

22 Sep 2025, 17:16

Type	Values Removed	Values Added
CPE		cpe:2.3:a:arm:mbed_tls::::::::
References	~~() https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-1.md -~~	() https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-1.md - Third Party Advisory, Exploit
First Time		Arm Arm mbed Tls

08 Jul 2025, 16:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-07-04 15:15

Updated : 2025-09-22 17:16

NVD link : CVE-2025-52496

Mitre link : CVE-2025-52496

CVE.ORG link : CVE-2025-52496

JSON object : View

Products Affected

arm

mbed_tls

CWE

CWE-733

Compiler Optimization Removal or Modification of Security-critical Code

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