Is CVE-2021-20117 being actively exploited?

CVE-2021-20117 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2021-20117?

CVE-2021-20117 has a CVSS 3.1 base score of 6.7 (MEDIUM).

CVE-2021-20117

MEDIUM · CVSS 6.7EPSS 0.3%EU EUVD

Nessus Agent 8.3.0 and earlier was found to contain a local privilege escalation vulnerability which could allow an authenticated, local administrator to run specific executables on the Nessus Agent host. This is different than CVE-2021-20118.

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-2021-7574)
Published: September 9, 2021
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2021-7574 in the EU Vulnerability Database. Last updated in EUVD on August 3, 2024.

View on the EU Vulnerability Database

Affected products

tenable / nessus agent

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Nessus Agent 8.0.0 - Tenable, Inc. - Common Criteria CCEVS-VR-VID-11066-2020 - archived

References

https://www.tenable.com/security/tns-2021-15(Patch, Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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