Low severity2.2NVD Advisory· Published Apr 3, 2025· Updated Apr 15, 2026

CVE-2025-29991

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.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.yubico.com/support/security-advisories/ysa-2025-02/nvd

News mentions

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cvss	0.143
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