CVE-2025-52496 — Compiler Optimization Removal or Modification of Security-critical Code in Mbedtls
Severity
7.8HIGHNVD
OSV9.8
EPSS
0.0%
top 88.70%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJul 4
Latest updateMar 25
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 vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:NExploitability: 1.4 | Impact: 5.8
Affected Packages4 packages
🔴Vulnerability Details
4📋Vendor Advisories
3Microsoft▶
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 forg↗2025-07-08
Debian▶
CVE-2025-52496: mbedtls - Mbed TLS before 3.6.4 has a race condition in AESNI detection if certain compile...↗2025
💬Community
1Bugzilla
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