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.
Exploitability
AV:LAC:HPR:NUI:NScope
S:CImpact
C:HI:HA:N7.8/CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:NOther