CVE-2020-15903
Nagios XI vulnerability analysis and mitigation

Overview

An issue was found in Nagios XI before version 5.7.3 where there was a privilege escalation vulnerability in backend scripts that ran as root (NVD).

Technical details

The vulnerability exists in backend scripts of Nagios XI that were configured to run with root privileges, allowing potential privilege escalation. The issue was discovered and disclosed in September 2020, affecting versions prior to 5.7.3 (NVD).

Impact

The vulnerability could allow an attacker to escalate their privileges to root level access on affected systems running Nagios XI, potentially gaining complete control over the system (NVD).

Exploitability

The vulnerability requires access to the Nagios XI system to exploit the affected backend scripts. No public exploits were known to be available at the time of disclosure (NVD).

Mitigation and workarounds

The vulnerability was fixed in Nagios XI version 5.7.3. Users should upgrade to this version or later to mitigate the risk. No alternative workarounds were published (NVD).

Additional resources


SourceThis report was generated using AI

Related Nagios XI vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-2043HIGH8.8
  • Nagios XI logoNagios XI
  • cpe:2.3:a:nagios:nagios_xi
NoNoFeb 20, 2026
CVE-2026-2042HIGH8.8
  • Nagios XI logoNagios XI
  • cpe:2.3:a:nagios:nagios_xi
NoNoFeb 20, 2026
CVE-2026-2041HIGH8.8
  • Nagios XI logoNagios XI
  • cpe:2.3:a:nagios:nagios_xi
NoNoFeb 20, 2026
CVE-2025-67255HIGH8.8
  • Nagios XI logoNagios XI
  • cpe:2.3:a:nagios:nagios_xi
NoNoDec 29, 2025
CVE-2025-67254HIGH7.5
  • Nagios XI logoNagios XI
  • cpe:2.3:a:nagios:nagios_xi
NoNoDec 29, 2025

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management