CVE-2026-2026: tenable agent Incorrect Default Permissions
CVSS: 6.1v3.1MediumAnalyzed
Published 13-02-2026Last modified 13-02-2026
Vulnerability summary
CVE-2026-2026 is a medium (CVSS 6.1) Incorrect Default Permissions vulnerability in tenable agent. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.9% of scored vulnerabilities.
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)EPSS score
0.12%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-02-2026PublishedVulnerability first disclosed.
- 13-02-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 2 sources · 2 versionsMedium 5.4Preferred score · CVE.org (CNA)
CVSS: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:PSourcesAll 2 agree
- NVDNIST5.4MediumCVSS: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
Medium 6.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:HSourcesAll 2 agree
- NVDNIST6.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
EPSS trend
Probability
0.12%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
+0.01 pp
From 0.11% on 18-09-2026
18-09-202618-10-2026
EPSS score0.12%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Tenable2 products
- agent≥ 11.1.0, < 11.1.2 | < 11.0.4
- nessus_agent< 11.0.4 | ≥ 11.1.0, < 11.1.2
1 vendor · 2 products
References
1 links- www.tenable.com/security/tns-2026-05Vendor Advisory