CVE-2021-20135
Nessus versions 8.15.2 and earlier were found to contain a local privilege escalation vulnerability which could allow an authenticated, local administrator to run specific executables on the Nessus Agent host. Tenable has included a fix for this issue in Nessus 10.0.0. The installation files can be obtained from the Tenable Downloads Portal (https://www.tenable.com/downloads/nessus).
Key facts
- CVSS score
- 6.7 (v3.1)
- Severity
- MEDIUM
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H- EPSS score
- 0.3% (22th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2021-7592)
- Published
- November 3, 2021
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2021-7592 in the EU Vulnerability Database. Last updated in EUVD on August 3, 2024.
View on the EU Vulnerability DatabaseAffected products
- tenable / nessus
Certified products that may be affected
2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Nessus Manager 8.11.1 - Tenable, Inc. - Common Criteria CCEVS-VR-VID-11067-2020 - archived
- Tenable SecurityCenter 4.4 (SC) and Components: 3D Tool 2.0.1 Log Correlation Engine 3.6 (LCE), Passive Vulnerability Scanner 3.6 (PVS), Nessus 5.0.1, and xTool 2.1 - Tenable Network Security, Inc. - Common Criteria CCEVS-VR-VID-10443-2012 - archived
References
- https://www.tenable.com/security/tns-2021-18(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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