CVE-2024-14003: 
Nagios XI vulnerability analysis and mitigation

Nagios XI versions prior to 2024R1.2 are vulnerable to remote code execution (RCE) through its NRDP (Nagios Remote Data Processor) server plugins. The vulnerability (CVE-2024-14003) was disclosed on October 30, 2025, affecting all Nagios XI installations before version 2024R1.2. The issue stems from insufficient validation of inbound NRDP request parameters (VulnCheck Advisory).

The vulnerability allows crafted input to reach command execution paths due to insufficient validation of inbound NRDP request parameters. This enables attackers to execute arbitrary commands on the underlying host in the context of the web/Nagios service. The vulnerability has been assigned a CVSS v4.0 base score of 9.4 CRITICAL with the vector string CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H. The weakness is categorized as CWE-78: Improper Neutralization of Special Elements used in an OS Command (VulnCheck Advisory).

The vulnerability allows attackers to execute arbitrary commands on the affected system with the privileges of the web/Nagios service. This could lead to complete system compromise, as the attacker can achieve high levels of confidentiality, integrity, and availability impact on the target system (VulnCheck Advisory).

The vulnerability has been patched in Nagios XI version 2024R1.2. Organizations running affected versions should upgrade to version 2024R1.2 or later to mitigate this security risk (Nagios Changelog, Nagios Security).