CVE-2026-44711

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

Published May 27, 2026 CVSS 3.1 · 7.9 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Mcdope
Mcdope pam Usb
Vendors & Products Mcdope
Mcdope pam Usb
Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title pam_usb: Symlink attacks on pad directory and pad files enable authentication bypass and root file corruption
Weaknesses CWE-287
CWE-59
References
Metrics cvssV3_1

{'score': 7.9, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 28, 2026, 12:47 PM
Reserved
May 7, 2026, 5:07 PM
Status
Deferred
Published
May 27, 2026, 9:16 PM
Modified
Oct 26, 2026, 12:10 PM