What is CVE-2025-36640?

CVE-2025-36640 is a high-severity vulnerability in Tenable Nessus Agent, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2026-01-13.

How severe is CVE-2025-36640?

High severity. CVSS v3 base score is 8.8 out of 10.

Privilege escalation in Tenable Nessus Agent

CVE-2025-36640

A vulnerability has been identified in the installation/uninstallation of the Nessus Agent Tray App on Windows Hosts which could lead to escalation of privileges.

Vulnerability class: Privilege Escalation

EPSS: 0.000 (3.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Tenable Nessus Agent — versions 0, 11.0.0

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

www.tenable.com/security/tns-2026-01

Frequently asked questions

What is CVE-2025-36640?: CVE-2025-36640 is a high-severity vulnerability in Tenable Nessus Agent, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2026-01-13.
How severe is CVE-2025-36640?: High severity. CVSS v3 base score is 8.8 out of 10.