NULL pointer dereference in Mcdope Pam_usb

CVE-2026-48985

pam_usb provides hardware authentication for Linux using ordinary removable media. In versions 0.9.1 and below, pusb_is_loginctl_local() can cause a NULL dereference crash when parsing loginctl output. The function calls popen() and reads…

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-48985?
CVE-2026-48985 is a medium-severity vulnerability in Mcdope Pam_usb, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2026-06-18.
How severe is CVE-2026-48985?
Medium severity. CVSS v3 base score is 5.5 out of 10.