# CVE-2025-52496

## Summary

- **CVE ID:** CVE-2025-52496
- **Severity:** HIGH
- **CVSS Score:** 7.8 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N)
- **CWE:** CWE-733
- **Published:** Jul 4, 2025
- **Last Modified:** Mar 13, 2026

## 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.

## Affected Products

- Mbed — mbedtls (0)

## References

- [CNA](https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-1.md)
- [CVE](https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.19%
- **EPSS Percentile:** 8.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._