CVEvulnerability

CVE-2025-12888

1.0 LOW Published 2025-11-21 Modified 2026-10-19 Official page ↗
Status
Analyzed
Published
2025-11-21
Last modified
2026-10-19
Assigner
[email protected]
CVSS 4.0 ([email protected])
1.0 LOW — CVSS:4.0/AV:P/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-203

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.

Affected configurations

• wolfssl wolfssl 5.8.2

Related

Weakness · CWE (1)

  • CWE-203 Observable Discrepancy weakness

References