CVE-2020-5791

Name: CVE-2020-5791
Creator: NVD / NIST
Published: 2020-10-20T22:15:44.56+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 78.63%

Last modified Jun 17, 2026

CVE-2020-5791 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Improper neutralization of special elements used in an OS command in Nagios XI 5.7.3 allows a remote, authenticated admin user to execute operating system commands with the privileges of the apache user.. EPSS estimates a 78.63% chance of exploitation in the next 30 days.

Description

Improper neutralization of special elements used in an OS command in Nagios XI 5.7.3 allows a remote, authenticated admin user to execute operating system commands with the privileges of the apache user.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

78.63%

99.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Nagios	Nagios Xi	>= 5.6.0, <= 5.7.3

References

http://packetstormsecurity.com/files/159743/Nagios-XI-5.7.3-Remote-Command-Injection.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/162235/Nagios-XI-5.7.3-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://www.tenable.com/security/research/tra-2020-58Exploit, Third Party Advisory
http://packetstormsecurity.com/files/159743/Nagios-XI-5.7.3-Remote-Command-Injection.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/162235/Nagios-XI-5.7.3-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://www.tenable.com/security/research/tra-2020-58Exploit, Third Party Advisory

Timeline

Published: Oct 20, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5791?

How severe is CVE-2020-5791?

CVE-2020-5791 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 78.63% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5791?

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-2020-5791?

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

Scan your code now

Source: NVD / NIST