CVE-2018-25122CWE-78command-injection

CVE-2018-25122

High · published October 31, 2025

CVSS v3.1
8.8
EPSS
2%
Percentile
76.7
In the wild
Unconfirmed
What it is

⚡ An authenticated user can exploit a little-known flaw in Nagios XI to run arbitrary code at will — from the Component Download page! 🚨 Think of this like a restaurant where an unsuspecting diner can sneak into the kitchen and change the entire menu — not very appetizing! 🍽️ With this vulnerability, an attacker could execute any code they want with the same privileges as the application service. This could lead to data breaches, system takeovers, or even total chaos on your monitoring setup. The potential consequences are absolutely devastating! 🔥

Put simply

Think of this like a restaurant where an unsuspecting diner can sneak into the kitchen and change the entire menu — not very appetizing! 🍽️ CVE-2018-25122 is a remote code execution vulnerability stemming from unsafe command construction in Nagios XI's Component Download page. It allows an authenticated user to inject and execute arbitrary code due to insufficient validation and output encoding.

What to do

With this vulnerability, an attacker could execute any code they want with the same privileges as the application service. This could lead to data breaches, system takeovers, or even total chaos on your monitoring setup. The potential consequences are absolutely devastating! 🔥 To secure your system, immediately upgrade Nagios XI to version 5.4.13 or later. Additionally, review user permissions to limit access and ensure proper validation for any user input. Regularly audit your systems for vulnerabilities like this one. 🛡️ You've got this! Follow these steps and your monitoring will be safe and sound in no time! 💪✨

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01675 · 76.7th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2025-10-31T02:15Z
Affected products (1)
ProductVersionsFixed in
nagios/nagios_xi< 5.4.135.4.13
References (2)
EPSS history
Timeline
  • 30 OCT 21:37Z
    Nagios XI < 5.4.13 Component Download Page RCE
    cvelistv5