CVE-2026-48980
MEDIUM EPSS 2.7%
Published Jun 18, 20262w ago · Modified Jun 22, 20261w ago
6.3 CVSS 3.1
Published Jun 18, 2026 2w ago
Last Modified Jun 22, 2026 1w ago
Description
pam_usb provides hardware authentication for Linux using removable media. In versions prior to 0.9.2, getenv() environment variables XRDP_SESSION, DISPLAY and TMUX allow environment variable injection into local-check logic. These environment variables influence whether a current session is local or remote, and a PAM module that runs in the context of setuid binaries (sudo, su), getenv() returns attacker-controlled values whenever the process environment has been manipulated by a local user. This issue has been fixed in version 0.9.2.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None
Threat Intelligence
EPSS Exploit Probability
2.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-454
CWE-807
References 2
- github.com https://github.com/mcdope/pam_usb/releases/tag/0.9.2
- github.com https://github.com/mcdope/pam_usb/security/advisories/GHSA-qr83-mf3h-fvqr
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.