CyberRota Analysis
This is a low severity vulnerability with a CVSS score of 2.2. See the original NVD description below for full technical details.
CVE
CVE-2025-29991
Severity
LOW
CVSS
2.2
EPSS
0.11%
Original NVD Description
Yubico YubiKey 5.4.1 through 5.7.3 before 5.7.4 has an incorrect FIDO CTAP PIN/UV Auth Protocol Two implementation. It uses the signature length from CTAP PIN/UV Auth Protocol One, even when CTAP PIN/UV Auth Protocol Two was chosen, resulting in a partial signature verification.