PT-2026-44110 · Pam Usb · Pam Usb

Mcdope · Published 2026-05-27 · Updated 2026-05-28 · CVE-2026-44710

Positive Technologies (AI Summary)

CVSS v3.1

4.6

Medium

Base vector

AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions pam usb versions prior to 0.8.7

Description In src/device.c, the return values of the functions udisks drive get serial(), udisks drive get vendor(), and udisks drive get model() are passed directly to strcmp() without NULL checks. According to GIO/UDisks API documentation, these accessors can return NULL for devices that do not expose the corresponding field. Passing a NULL pointer to strcmp() results in undefined behavior, typically leading to a SIGSEGV (segmentation fault), which causes a PAM crash and a login denial-of-service.

Recommendations Update to version 0.8.7.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-44710

Affected Products

Pam Usb

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-44710 · Security Note
• https://github.com/mcdope/pam_usb/security/advisories/GHSA-j8cq-2gv6-gfwf · Note
• https://t.me/cveNotify/164948 · Telegram Post
• https://t.me/CVEtracker/55175 · Telegram Post