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CVE-2025-52496

Good to know:

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Date: July 3, 2025

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.

Severity Score

Related Resources (5)

https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-1.md
https://nvd.nist.gov/vuln/detail/CVE-2025-52496
https://security.alpinelinux.org/vuln/CVE-2025-52496
https://security-tracker.debian.org/tracker/CVE-2025-52496
https://www.mend.io/vulnerability-database/CVE-2025-52496

Severity Score

Weakness Type (CWE)

Compiler Optimization Removal or Modification of Security-critical Code

CWE-733

Top Fix

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Upgrade Version

Upgrade to version https://github.com/Mbed-TLS/mbedtls.git - v3.6.4

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

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