【Vulnerability Alert】High-risk security vulnerabilities (CVE-2025-34134、CVE-2025-34284、and CVE-2025-34286) have been identified in Nagios XI. Please verify and apply the necessary patches as soon as possible.

publish date : 2025-11-07 update date : 2025-11-07

Source: Ministry of education information & communication security contingency platform

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Publication Number TACERT-ANA-2025110603112626 Publication Time 2025/11/06 15:34
Incident Type ANA-Vulnerability Alert Discovery Time 2025/11/06 15:34
Impact Level Medium  
[Subject]
【Vulnerability Alert】High-risk security vulnerabilities (CVE-2025-34134、CVE-2025-34284、and CVE-2025-34286) have been identified in Nagios XI. Please verify and apply the necessary patches as soon as possible.
[Content]
Forwarded from the National Institute of Cyber Security NISAC-200-202511-00000041

Researchers have discovered operating system command injection (OS Command Injection) vulnerabilities (CVE-2025-34134、CVE-2025-34284、and CVE-2025-34286) in Nagios XI. Remote attackers without authentication can inject arbitrary operating system commands and execute them on the server. These vulnerabilities have been exploited by attackers; please verify and apply patches as soon as possible.

Information Sharing Level: WHITE (Information content can be publicly disclosed)

[Affected Platform]
CVE-2025-34134 vulnerability affects Nagios XI versions prior to 2024R1.4.2 (exclusive).

CVE-2025-34284 vulnerability affects Nagios XI versions prior to 2024R2 (exclusive).

CVE-2025-34286 vulnerability affects Nagios XI versions prior to 2026R1 (exclusive).

[Recommended Actions]
Update Nagios XI to version 2026R1 or later.

[Reference]
1. https://www.nagios.com/products/security/#nagios-xi

2. https://www.cve.org/CVERecord?id=CVE-2025-34134

3. https://www.cve.org/CVERecord?id=CVE-2025-34284

4. https://www.cve.org/CVERecord?id=CVE-2025-34286

(This notification is for informational purposes only and does not constitute a cybersecurity incident).
If you have questions or suggestions regarding this notification, please feel free to contact us.
Ministry of education information & communication security contingency platform
Website: https://info.cert.tanet.edu.tw/
Phone: +886-7-5250211
Internet Phone: 98400000
E-Mail: service@cert.tanet.edu.tw
Organizer: Computer Center