CVE-2025-29991

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...

Yubico YubiKey 安全漏洞

Yubico YubiKey is a hardware authentication device from the Swedish company Yubico. A security vulnerability exists in Yubico YubiKey versions 5.4.1 through 5.7.3, which stems from an incorrect implementation of the FIDO CTAP PIN/UV Auth Protocol Two, which could lead to partial signature...

CVE-2025-29991

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...

CVE-2025-29991

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...

CVE-2025-29991: Weak Authentication

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...

PT-2025-14572 · Yubico · Yubikey

Name of the Vulnerable Software and Affected Versions: Yubico YubiKey versions 5.4.1 through 5.7.3 Description: The issue is related to an incorrect implementation of the FIDO CTAP PIN/UV 2 authentication protocol. Specifically, it uses the signature length from the CTAP PIN/UV 1 protocol, even...

CVE-2025-29991

CVE-2025-29991 affects Yubico YubiKey 5.4.1–5.7.3; the FIDO CTAP PIN/UV Auth Protocol Two implementation incorrectly uses the 16-byte signature length from Protocol One, causing partial signature verification when Protocol Two is chosen. Remediation: update to version 5.7.4 or later. Other disclo...

YSA-2025-02 | Yubico

A low severity issue has been identified in YubiKeys versions 5.4.1 through 5.7.3 in the FIDO CTAP PIN/UV Auth Protocol Two implementation. These YubiKey versions use the 16 byte signature length from CTAP PIN/UV Auth Protocol One during the verification step, even when the 32 byte CTAP PIN/UV Au...

CVE-2024-35311

Yubico YubiKey 5 Series before 5.7.0, Security Key Series before 5.7.0, YubiKey Bio Series before 5.6.4, and YubiKey 5 FIPS before 5.7.2 have Incorrect Access Control...

Security Bulletin: A Security Vulnerability was discovered in IBM Security Verify Access (CVE-2024-45678)

Summary A Security Vulnerability was addressed in IBM Security Verify Access regarding Yubico Yubikey 5 Series. Vulnerability Details CVEID:CVE-2024-45678 DESCRIPTION: Yubico YubiKey 5 Series, Security Key Series and YubiHSM 2 could allow a physical attacker to obtain sensitive information, cause...

[SECURITY] Fedora 40 Update: pam-u2f-1.3.2-1.fc40

The PAM U2F module provides an easy way to integrate the Yubikey or other U2F-compliant authenticators into your existing user authentication infrastructure...

[SECURITY] Fedora 41 Update: pam-u2f-1.3.2-1.fc41

The PAM U2F module provides an easy way to integrate the Yubikey or other U2F-compliant authenticators into your existing user authentication infrastructure...

DEBIAN-CVE-2025-23013

In Yubico pam-u2f before 1.3.1, local privilege escalation can sometimes occur. This product implements a Pluggable Authentication Module PAM that can be deployed to support authentication using a YubiKey or other FIDO compliant authenticators on macOS or Linux. This software package has an issue...

UBUNTU-CVE-2025-23013

In Yubico pam-u2f before 1.3.1, local privilege escalation can sometimes occur. This product implements a Pluggable Authentication Module PAM that can be deployed to support authentication using a YubiKey or other FIDO compliant authenticators on macOS or Linux. This software package has an issue...

FIDO2 redirection in Chrome and Edge doesn't work

https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/secure/fido2.htmllocal-authorization-and-virtual-authentication-using-fido2-and-webauthn was followed. However devices which use Fido2 such as fingerprint readers and YubiKey devices are not detected in the browser,...

YubiKey Side-Channel Attack

There is a side-channel attack against YubiKey access tokens that allows someone to clone a device. Its a complicated attack, requiring the victims username and password, and physical access to their YubiKey--as well as some technical expertise and equipment. Still, nice piece of security analysi...

YubiKeys Are a Security Gold Standard—but They Can Be Cloned

Security researchers have discovered a cryptographic flaw that leaves the YubiKey 5 vulnerable to attack...

CVE-2024-45678

Yubico YubiKey 5 Series devices with firmware before 5.7.0 and YubiHSM 2 devices with firmware before 2.4.0 allow an ECDSA secret-key extraction attack that requires physical access and expensive equipment in which an electromagnetic side channel is present because of a non-constant-time modular...

CVE-2024-45678

Yubico YubiKey 5 Series devices with firmware before 5.7.0 and YubiHSM 2 devices with firmware before 2.4.0 allow an ECDSA secret-key extraction attack that requires physical access and expensive equipment in which an electromagnetic side channel is present because of a non-constant-time modular...

CVE-2024-45678

Yubico YubiKey 5 Series devices with firmware before 5.7.0 and YubiHSM 2 devices with firmware before 2.4.0 allow an ECDSA secret-key extraction attack that requires physical access and expensive equipment in which an electromagnetic side channel is present because of a non-constant-time modular...