CVE-2025-52496

HIGH EPSS 8.7%

Published Jul 4, 202512mo ago · Modified Jun 17, 20261w ago

7.8 CVSS 3.1

High

Published Jul 4, 2025 12mo ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

7.8

Exploitability

1.4

Impact

5.8

Vector string

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Attack Vector Local

Attack Complexity High

Privileges Required None

User Interaction None

Scope Changed

Confidentiality High

Integrity High

Availability None

Threat Intelligence

EPSS Exploit Probability

8.7% percentile

Exploit & Patch Status

Public Exploit Known

No Patch Available

Weaknesses 1

CWE-733

Affected Products 1

Vendor	Product	Version	Range
arm	mbed_tls	*	<3.6.4

References 2

github.com https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-1.md

ExploitThird Party Advisory
lists.debian.org https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.