CVE-2020-5774

Name: CVE-2020-5774
Creator: NVD / NIST
Published: 2020-08-21T13:15:14.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.35%

Last modified Jun 17, 2026

CVE-2020-5774 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.1/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS Probability

0.35%

26.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-613

Affected Software

Vendor	Product	Versions
Tenable	Nessus	<= 8.11.0

References

https://www.tenable.com/security/tns-2020-06Patch, Vendor Advisory
https://www.tenable.com/security/tns-2020-06Patch, Vendor Advisory

Timeline

Published: Aug 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5774?

How severe is CVE-2020-5774?

CVE-2020-5774 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5774?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-5774?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST