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CVE-2026-2026

Improper Access Control Allows Denial of Service

Medium5.4EPSS 0.12%
Published
Updated
Reserved
Assigned by
tenable

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.

Scores

CVSS scores of CVE-2026-2026, by who scored it
Scored byCVSSScoreVector
tenableCNA (assigner)4.0Medium5.4CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
tenableCNA (assigner)3.1Medium6.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
NVDNVD · Analyzed4.0Medium5.4CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (exploitation in 30 days)
0.12% · top 98% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.

Weakness

Affected products

  • Tenable · Agent

    • affected 11.1.0 – < 11.1.2
    • affected < 11.0.4

What to do

Solution: Tenable has released Nessus Agent 11.0.4 and 11.1.2 to address these issues. The installation files can be obtained from the Tenable Downloads Portal ( https://www.tenable.com/downloads/nessus) .

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .