CVE-2026-44711CWE-287CWE-59

pam_usb: Symlink attacks on pad directory and pad files enable authentication bypass and root file corruption

High · published May 27, 2026

CVSS v3.1
7.9
EPSS
0%
Percentile
10.8
In the wild
Unconfirmed
What it is

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, symlink attacks on pad directory and pad files enable authentication bypass and root file corruption. This vulnerability is fixed in 0.8.7.

The record
Technical detail
CVSS v3.1
7.9 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00211 · 10.8th percentile
Weaknesses
CWE-287 · Improper Authentication; CWE-59 · Improper Link Resolution Before File Access ('Link Following')
Published
2026-05-27T20:18Z
EPSS history
Timeline
  • 27 MAY 20:18Z
    pam_usb: Symlink attacks on pad directory and pad files enable authentication bypass and root file corruption
    cvelistv5