Detections
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Tenable Nessus < 10.11.4 / 10.12.0 Arbitrary File Deletion (TNS-2026-13)

high Nessus Plugin ID 311266

Synopsis

An instance of Nessus installed on the remote Windows system is affected by an arbitrary file deletion vulnerability.

Description

According to its self-reported version, the Tenable Nessus application running on the remote Windows host is prior to 10.11.4 or 10.12.0. It is, therefore, affected by an arbitrary file deletion vulnerability as referenced in the TNS-2026-13 advisory.

 - A vulnerability exists in Nessus on Windows where an authenticated attacker could create a junction, enabling the deletion of arbitrary files with SYSTEM privileges, potentially facilitating arbitrary code execution with elevated permissions. (CVE-2026-33694)

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

Solution

Upgrade to Tenable Nessus 10.11.4, 10.12.0 or later.

See Also

http://www.nessus.org/u?da741709

Plugin Details

Severity: High

ID: 311266

File Name: nessus_TNS-2026-13.nasl

Version: 1.2

Type: Combined

Agent: windows, macosx, unix

Family: Misc.

Published: 4/30/2026

Updated: 5/1/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-33694

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.6

Threat Score: 7.4

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Vulnerability Information

CPE: cpe:/a:tenable:nessus

Required KB Items: installed_sw/Tenable Nessus

Exploit Ease: No known exploits are available

Patch Publication Date: 4/23/2026

Vulnerability Publication Date: 4/23/2026

Reference Information

CVE: CVE-2026-33694