Buffer overflow in Mcdope Pam_usb

CVE-2026-48065

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/conf.c allocates heap memory proportional to n_devices, a count derived from libxml2 XPath evaluation of the config file, without first…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (6.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-48065?
CVE-2026-48065 is a medium-severity vulnerability in Mcdope Pam_usb, classified under Heap-based Buffer Overflow. CVSS score: 6.7/10. Published 2026-05-27.
How severe is CVE-2026-48065?
Medium severity. CVSS v3 base score is 6.7 out of 10.