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CVE-2026-2026— Improper Access Control Allows Denial of Service

Quick assessment

Affected
Tenable Agent
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tenable Nessus Agent是美国Tenable公司的一个漏洞扫描程序。 Tenable Nessus Agent存在安全漏洞，该漏洞源于Windows主机上文件权限设置不当，可能导致拒绝服务攻击。

CVSS 6.1 · Medium EPSS 0.11% · P1
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I. Basic Information for CVE-2026-2026

Vulnerability Information
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Vulnerability Title
Improper Access Control Allows Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Tenable Nessus Agent 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenable Nessus Agent是美国Tenable公司的一个漏洞扫描程序。 Tenable Nessus Agent存在安全漏洞，该漏洞源于Windows主机上文件权限设置不当，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tenable Agent 11.1.0 ~ 11.1.2 -

II. Public POCs for CVE-2026-2026

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-2026

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IV. Related Vulnerabilities

Same product: Agent
Same vendor: Tenable
Same weakness: CWE-276

V. Comments for CVE-2026-2026

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