CVE-2020-36856: critical vulnerability in Nagios XI
Nagios XI < 5.6.14 Authenticated RCE command_test.php via address
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 2.5%
Nagios XI versions prior to 5.6.14 contain an authenticated remote command execution vulnerability in the CCM command_test.php script. Insufficient validation of the `address` parameter allows an authenticated user with access to the Core Config Manager to inject shell metacharacters that are incorporated into backend command invocations. Successful exploitation enables arbitrary command execution with the privileges of the Nagios XI web application user and may be leveraged to execute commands on the underlying XI host, modify system configuration, or fully compromise the host.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Affected products
Nagios · XIRelated CVEs — Nagios XI
In the same product, most dangerous first.
CVE-2024-14005CRITICALNagios XI < 2024R1.2 Command Injection via Docker WizardEPSS 4.0%CVE-2025-34284CRITICALNagios XI < 2024R2 Authenticated Command Injection via WinRM PluginEPSS 4.0%CVE-2013-10073HIGHNagios XI < 2012R1.6 Auto-Discovery Shell Command InjectionEPSS 3.4%CVE-2020-36867HIGHNagios XI < 5.7.3 Command Injection in Report PDF DownloadEPSS 2.5%CVE-2024-14008CRITICALNagios XI < 2024R1.3.2 RCE via WinRM Configuration WizardEPSS 2.4%CVE-2025-34286CRITICALNagios XI < 2026R1 RCE via Run Check Command in CCMEPSS 2.4%