CVE-2025-23013 describes a local privilege escalation vulnerability in Yubico pam-u2f before version 1.3.1, affecting its Pluggable Authentication Module (PAM) used for FIDO authentication on macOS and Linux. An unprivileged attacker can exploit this flaw to bypass authentication, potentially requiring knowledge of the user's password depending on the configuration. With a CVSS score of 7.3 (HIGH), the vulnerability has a low attack complexity and can lead to high impacts on confidentiality, integrity, and availability. Currently, there is no public exploit code available, nor is there any evidence of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0, < 1.3.1CPE match | cpe:2.3:a:yubico:pam-u2f:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.