CVE-2026-44712

8.2 HIGH

pam_usb provides hardware authentication for Linux using ordinary removable media

Published: 2026-05-27 · Last updated: 2026-05-28

Severity and scoring

CVSS: 8.2 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE: CWE-78, CWE-88

Description

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, a crafted UUID such as $(id>/tmp/rce) in the config causes root RCE when pamusb-conf --reset-pads is run. A USB device with a crafted filesystem UUID (some controllers allow this) can inject the payload at --add-device time. Also, userName from the XML config is passed to os.system() in pamusb-agent, which invokes a shell. This vulnerability is fixed in 0.8.7.

Source: NVD

References

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