CVE-2020-15903

9.8 criticalEPSS 5.5%

Critical (9.8) in nagios nagios xi. EPSS 5.5% chance of exploitation in the next 30 days.

An issue was found in Nagios XI before 5.7.3. There is a privilege escalation vulnerability in backend scripts that ran as root where some included files were editable by nagios user. This issue was fixed in version 5.7.3.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 5.5% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)
Published: 2020-09-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

nagios:nagios_xi

References

https://www.nagios.com/downloads/nagios-xi/change-log/
https://www.nagios.com/downloads/nagios-xi/change-log/

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