Auth bypass in N/a

CVE-2026-36829

An authentication bypass vulnerability exists in the embedded HTTP server of Panabit PAP-XM320 up to and including v7.7. The server validates session cookies using a filesystem existence check based on a user-controlled cookie value without proper sanitization, allowing directory traversal and bypass of authentication.

Vulnerability class: Path Traversal (Directory Traversal)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.6th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-36829: held from 0.013 to 0.015.

EPSS over last 30 days · oldest: 0.013 · newest: 0.015 · change: +0.002

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-36829?
CVE-2026-36829 is a critical-severity vulnerability in N/a, classified under Path Traversal. CVSS score: 9.8/10. Published 2026-05-19.
How severe is CVE-2026-36829?
Critical severity. CVSS v3 base score is 9.8 out of 10.