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CVSS v3.1
2.2
EPSS
0.11%
Published
Apr 3, 2025
Modified
Apr 14, 2026
Public PoC / Exploit
All weaponized →No public PoC or exploit code indexed for this CVE.
Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
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.
CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:NWeaknesses (CWE)