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CVE-2026-18667: CWE-94 in Tenable, Inc. Sensor Proxy

0
Critical
VulnerabilityCVE-2026-18667cvecve-2026-18667cwe-94
Published: 08/03/2026 (08/03/2026, 22:27:29 UTC)
Source: CVE Database V5
Vendor/Project: Tenable, Inc.
Product: Sensor Proxy

Description

CVE-2026-18667 is a critical vulnerability in Tenable, Inc.'s Sensor Proxy that allows a remote attacker to execute code with elevated privileges. This occurs when an operator is tricked into connecting the sensor to a malicious host controlled by the attacker. The vulnerability is related to improper handling of code execution (CWE-94). No patch or official remediation guidance is currently available.

CVSS v3.1

Score 9.6critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/03/2026, 22:47:51 UTC

Technical Analysis

This vulnerability in Tenable Sensor Proxy enables remote code execution with elevated privileges by exploiting an operator's action of connecting the sensor to an attacker-controlled host. The issue is classified under CWE-94, indicating improper control of code generation or execution. The CVSS v3.1 score is 9.6 (critical), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope change, and high impact on confidentiality, integrity, and availability. No affected versions or patch information are provided, and no known exploits are reported in the wild as of the publication date.

Potential Impact

Successful exploitation allows a remote attacker to execute arbitrary code with elevated privileges on the Sensor Proxy system, potentially leading to full system compromise. The vulnerability impacts confidentiality, integrity, and availability of the affected system. The attack requires user interaction (an operator connecting to a malicious host), but no prior privileges are needed. The scope of the impact extends beyond the vulnerable component.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, operators should avoid connecting the Sensor Proxy to untrusted or attacker-controlled hosts to prevent exploitation.

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Technical Details

Data Version
5.2
Assigner Short Name
tenable
Date Reserved
2026-08-03T14:42:52.457Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
null

Threat ID: 6a711740bf32cb7a3455e994

Added to database: 08/03/2026, 22:33:36 UTC

Last enriched: 08/03/2026, 22:47:51 UTC

Last updated: 08/03/2026, 22:53:55 UTC

Views: 11

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