CVE-2025-12888 Affecting wolfssl package, versions <5.9.1-r0


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.01% (4th percentile)

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  • Snyk IDSNYK-ALPINE323-WOLFSSL-17037469
  • published29 May 2026
  • disclosed21 Nov 2025

Introduced: 21 Nov 2025

CVE-2025-12888  (opens in a new tab)

How to fix?

Upgrade Alpine:3.23 wolfssl to version 5.9.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wolfssl package and not the wolfssl package as distributed by Alpine. See How to fix? for Alpine:3.23 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1