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.
Published: 2025-07-04
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4274-1 mbedtls security update
EUVD EUVD EUVD-2025-20081 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.
History

Mon, 03 Nov 2025 20:30:00 +0000

Type Values Removed Values Added
References

Mon, 22 Sep 2025 17:30:00 +0000

Type Values Removed Values Added
First Time appeared Arm
Arm mbed Tls
CPEs cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
Vendors & Products Arm
Arm mbed Tls

Tue, 08 Jul 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 04 Jul 2025 15:00:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-733
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-11-03T20:05:50.713Z

Reserved: 2025-06-17T00:00:00.000Z

Link: CVE-2025-52496

cve-icon Vulnrichment

Updated: 2025-11-03T20:05:50.713Z

cve-icon NVD

Status : Modified

Published: 2025-07-04T15:15:22.633

Modified: 2025-11-03T20:19:13.020

Link: CVE-2025-52496

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-13T21:47:58Z

Weaknesses