CVE-2025-34284CWE-78command-injection

CVE-2025-34284

High ยท published October 31, 2025

CVSS v3.1
8.8
EPSS
4%
Percentile
90.5
In the wild
Unconfirmed
What it is

๐Ÿšจ An authenticated administrator can trigger a command injection in Nagios XI that opens the door to virtual chaos! ๐Ÿ”ฅ Think of this as a hotel manager who can rewrite the guest list without anyone checking their ID. If they slip in a few unauthorized characters, they could let anyone into the VIP suite, including malicious guests who wreak havoc. With this vulnerability, an attacker could execute arbitrary commands with the same privileges as the Nagios XI web application user. This means they could modify configurations, exfiltrate sensitive data, or even disrupt critical monitoring operations. The result? A potential disaster for your infrastructure.

Put simply

Think of this as a hotel manager who can rewrite the guest list without anyone checking their ID. If they slip in a few unauthorized characters, they could let anyone into the VIP suite, including malicious guests who wreak havoc. The command injection vulnerability in the WinRM plugin stems from insufficient validation of user-supplied parameters, allowing attackers to inject shell metacharacters into backend commands.

What to do

With this vulnerability, an attacker could execute arbitrary commands with the same privileges as the Nagios XI web application user. This means they could modify configurations, exfiltrate sensitive data, or even disrupt critical monitoring operations. The result? A potential disaster for your infrastructure. Upgrade to Nagios XI version 2024R2 or later immediately to patch this vulnerability. Also, review your user permissions and ensure that input validation is strictly enforced to prevent future exploits. Don't forget to audit command execution logs for any anomalies! You've got this! By taking action now, you'll secure your Nagios XI environment and keep your monitoring operations safe! ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS v3.1
8.8 ยท 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
0.04028 ยท 90.5th percentile
Weakness
CWE-78 ยท Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2025-10-31T02:15Z
Affected products (23)
ProductVersionsFixed in
nagios/nagios_xi< 20242024
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References (3)
EPSS history
Timeline
  • 30 OCT 21:30Z
    Nagios XI < 2024R2 Authenticated Command Injection via WinRM Plugin
    cvelistv5