Is CVE-2020-5774 being actively exploited?

CVE-2020-5774 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2020-5774?

CVE-2020-5774 has a CVSS 3.1 base score of 7.1 (HIGH).

CVE-2020-5774

HIGH · CVSS 7.1EPSS 0.3%EU EUVD

Nessus versions 8.11.0 and earlier were found to maintain sessions longer than the permitted period in certain scenarios. The lack of proper session expiration could allow attackers with local access to login into an existing browser session.

Key facts

CVSS score: 7.1 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-613
EPSS score: 0.3% (27th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2020-26933)
Published: August 21, 2020
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2020-26933 in the EU Vulnerability Database. Last updated in EUVD on August 4, 2024.

View on the EU Vulnerability Database

Affected products

tenable / nessus

Certified products that may be affected

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

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-2020-06(Patch, Vendor Advisory)

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

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