CVE-2025-29991
Low
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.
SeverityLow
CVSS2.2
Exploit probability—
ProductYubiKey
PublishedApr 3, 2025
First seenApr 3, 2025
Weakness typeCWE-1390CWE-1390
How to fix
Update
- Yubico YubiKey5.7.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Yubico YubiKey | 5.4.1 ≤ v < 5.7.4 | 5.7.4 |
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