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CVE-2026-48983

MEDIUM · CVSS 5.8 EPSS %0.08 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-06-18T20:16:14.657 · Çekilme zamanı: 2026-06-30T12:26:36.402302+00:00

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Public Exploit Sinyali

Bu CVE için açıklama veya referanslarda public exploit / PoC / GitHub / Metasploit sinyali tespit edildi.

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CVE
CVE-2026-48983
Severity
MEDIUM
CVSS
5.8
EPSS
%0.08
Linux

Orijinal NVD Açıklaması

pam_usb provides hardware authentication for Linux using ordinary removable media. In versions prior to 0.9.2, a symlink race condition exists in per-device and per-user pad directory creation. pam_usb uses a check-then-act pattern: it calls lstat() to test for existence and then calls mkdir() separately to create the directory. A local attacker can win the race between these calls by replacing the target path with a symlink to a directory they control. If successful, one-time pad files may be written to an attacker-controlled location, potentially exposing future pad values before use or disrupting authentication. This issue has been fixed in version 0.9.2.