CVE-2025-52496

Summary

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.

Affected Software

Weaknesses

• CWE-733: CWE-733 Compiler Optimization Removal or Modification of Security-critical Code

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: total

Additional References

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

CVE Program Container

Additional References

• https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html

References

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

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