Vulnerabilities
Products Security index
Vulnerabilities
CVE-2026-46419
Impersonation Vulnerability in Yubico WebAuthn Server Core 2.8.0–2.8.1
CVE-2026-40947
Unintended DLL Search Path in Yubico Authentication Libraries
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 that allows for an authentication bypass in some configurations. An attacker would require the ability to access the system as an unprivileged user. Depending on the configuration, the attacker may also need to know the user's password.
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 inversion for the Extended Euclidean Algorithm, aka the EUCLEAK issue. Other uses of an Infineon cryptographic library may also be affected.
CVE-2024-31498
Yubico ykman-gui (aka YubiKey Manager GUI) before 1.2.6 on Windows, when Edge is not used, allows privilege escalation because browser windows can open as Administrator.
