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.
{
"sources": [
{
"modified": "2026-06-17T09:36:36.130Z",
"database_specific": {
"status": "Modified"
},
"id": "CVE-2025-52496",
"published": "2025-07-04T15:15:22.633Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-52496",
"imported": "2026-07-17T20:47:21.061Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-52496"
}
],
"license": "CC-BY-4.0"
}