Nessus Agent Weak File Perms Allow Unauthorized Access on Windows
CVE-2026-2026 Published on February 13, 2026
Improper Access Control Allows Denial of Service
A vulnerability has been identified where weak file permissions in the Nessus Agent directory on Windows hosts could allow unauthorized access, potentially permitting Denial of Service (DoS) attacks.
Vulnerability Analysis
CVE-2026-2026 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
Incorrect Default Permissions
During installation, installed file permissions are set to allow anyone to modify those files.
Products Associated with CVE-2026-2026
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Affected Versions
Tenable Agent:- Version 11.1.0 and below 11.1.2 is affected.
- Before 11.0.4 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.