CVE-2025-29991

CVSS 2.2 LOWEPSS 0.1%CWE-1390

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:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N

Affected products

Yubico · YubiKey

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References

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