CVE-2021-3273

HIGH 7.2CVE-2021-3273 · Published 25/02/2021 · updated 17/06/2026

In short

CVE-2021-3273 is a HIGH (CVSS 7.2) vulnerability affecting nagios xi (nagios).
Chance of exploitation in the next 30 days (EPSS): 7.2%, higher than 94.3% of all vulnerabilities.
Fix: update to 5.7 or later.

Package	Affected versions	Patched versions
nagios xi nagios	`< 5.7`	`5.7`

Description

Nagios XI below 5.7 is affected by code injection in the /nagiosxi/admin/graphtemplates.php component. To exploit this vulnerability, someone must have an admin user account in Nagios XI's web system.

References

gist.github.com/leommxj/93edce6f8572cefe79a3d7da4389374e · Exploit
nagios.com/downloads/nagios-xi/change-log · Release Notes

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Package

Affected versions

Patched versions

nagios xi

nagios

< 5.7

5.7

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