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
- Mcdope Pam_usb — versions < 0.9.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
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.