CVE-2025-23013
CWE-394Published: January 15, 2025· Updated: Jun 17, 2026
Official Description
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.
Technical Analysis
CVE-2025-23013 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (7)
Quick Facts
Related CVEs (CWE-394)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-23013 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts