Is CVE-2025-52496 actively exploited?

CVE-2025-52496 has no public evidence of in-the-wild exploitation as of 2025-11-03.

What is the CVSS score for CVE-2025-52496?

CVE-2025-52496 has a CVSS score of 7.8 (HIGH severity). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.

How do I patch CVE-2025-52496?

Patch guidance is available from arm security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-52496.

Fix CVE-2025-52496 - HIGH arm mbed tls

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 Metrics

Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Attack Vector: local
Complexity: high
Privileges: none
User Action: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: none
Weaknesses: CWE-733

Metadata

Primary Vendor: ARM
Published: 7/4/2025
Last Modified: 11/3/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-52496

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary