CVE-2025-12888

CVE-2025-12888CVE-2025-12888

wolfssl / wolfssl

Description

Vulnerability in X25519 constant-time cryptographic implementations due to timing side channels introduced by compiler optimizations and CPU architecture limitations, specifically with the Xtensa-based ESP32 chips. If targeting Xtensa it is recommended to use the low memory implementations of X25519, which is now turned on as the default for Xtensa.

Scoring

CVSS 7.5 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Last modified2026-10-19
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.