PT-2025-44523 · Nagios Enterprises · Nagios Xi

D3Lt4 · Published 2025-09-24 · Updated 2025-10-31 · CVE-2025-34286

Positive Technologies · (AI Summary)

CVSS v4.0

9.4

9.4

Critical

Base vector

AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Name of the Vulnerable Software and Affected Versions Nagios XI versions prior to 2026R1

Description Nagios XI versions prior to 2026R1 contain a remote code execution issue in the Core Config Manager (CCM) Run Check command. Insufficient validation and escaping of parameters used to construct backend command lines allows an authenticated administrator to inject shell metacharacters that are executed on the server. Successful exploitation results in arbitrary command execution with the privileges of the Nagios XI web application user, potentially leading to control of the underlying host operating system.

Recommendations Nagios XI versions prior to 2026R1 should be updated to version 2026R1 or later.

Fix

RCE

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

BDU:2025-13776

CVE-2025-34286

Affected Products

Nagios Xi

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2025-34286 · Security Note
• https://nagios.com/changelog/nagios-xi · Patch
• https://bdu.fstec.ru/vul/2025-13776 · Security Note
• https://nagios.com/products/security/#nagios-xi · Patch, Vendor Advisory
• https://t.me/CVEtracker/36245 · Telegram Post
• https://twitter.com/offseq/status/1984070476189127065 · Twitter Post
• https://vulncheck.com/advisories/nagios-xi-rce-via-run-check-command-in-ccm · Note
• https://dbugs.ptsecurity.com/vulnerability/PT-2025-44523 · Note
• https://twitter.com/CVEnew/status/1984015862567776486 · Twitter Post