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CVE-2026-36829

CRITICALCVSS 9.8/10EPSS 1.27%

Last modified

CVE-2026-36829 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.27% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.27%

66.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is 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.
How severe is CVE-2026-36829?
CVE-2026-36829 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.27% probability of exploitation in the next 30 days.
How do I fix CVE-2026-36829?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-36829?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST