Detections
Analytics

Tenable Nessus Agent < 10.8.5 Multiple Vulnerabilities (TNS-2025-11) (Windows)

high Nessus Plugin ID 238433

Synopsis

An instance of Nessus Agent installed on the remote Windows system is affected by multiple vulnerabilities.

Description

According to its self-reported version, the Tenable Nessus Agent running on the remote Windows host is prior to 10.8.5. It is, therefore, affected by multiple vulnerabilities as referenced in the TNS-2025-11 advisory.

 - In Tenable Agent versions prior to 10.8.5 on a Windows host, it was found that a non-administrative user could overwrite arbitrary local system files with log content at SYSTEM privilege. - CVE-2025-366312. In Tenable Agent versions prior to 10.8.5 on a Windows host, it was found that a non- administrative user could execute code with SYSTEM privilege. - CVE-2025-366323. In Tenable Agent versions prior to 10.8.5 on a Windows host, it was found that a non-administrative user could arbitrarily delete local system files with SYSTEM privilege, potentially leading to local privilege escalation. - CVE-2025-36633 Tenable has released Agent 10.8.5 to address these issues. The installation files can be obtained from the Tenable Downloads Portal: https://www.tenable.com/downloads/nessus-agents (CVE-2025-36631, CVE-2025-366312, CVE-2025-36632, CVE-2025-366323, CVE-2025-36633, CVE-2025-366331)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Tenable Nessus Agent 10.8.5 or later.

See Also

https://www.tenable.com/security/TNS-2025-11

Plugin Details

Severity: High

ID: 238433

File Name: tenable_nessus_agent_TNS-2025-11.nasl

Version: 1.1

Type: local

Agent: windows

Family: Windows

Published: 6/13/2025

Updated: 6/13/2025

Configuration: Enable thorough checks (optional)

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2025-36633

CVSS v3

Risk Factor: High

Base Score: 8.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/a:tenable:nessus_agent

Required KB Items: installed_sw/Tenable Nessus Agent

Patch Publication Date: 6/12/2025

Vulnerability Publication Date: 6/12/2025

Reference Information

CVE: CVE-2025-36631, CVE-2025-36632, CVE-2025-36633