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CVE-2025-61908— Icinga 2 Denial of Service (DoS) By Dereferencing Invalid Reference

Quick assessment

Affected
Icinga icinga2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Icinga是德国Icinga公司的一套可扩展的服务器、网络资源监控系统。 Icinga 2 2.10.0版本至2.15.1之前版本、2.14.7版本和2.13.13版本存在代码问题漏洞，该漏洞源于创建无效引用时可能导致分段错误，任何可访问允许指定筛选表达式API端点的API用户均可利用此漏洞使Icinga 2守护进程崩溃。

AI Predicted 5.3 Difficulty: Easy EPSS 0.50% · P40
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I. Basic Information for CVE-2025-61908

Vulnerability Information
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Vulnerability Title
Icinga 2 Denial of Service (DoS) By Dereferencing Invalid Reference
Source: CVE Program / CVE List V5
Vulnerability Description
Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, when creating an invalid reference, such as a reference to null, dereferencing results in a segmentation fault. This can be used by any API user with access to an API endpoint that allows specifying a filter expression to crash the Icinga 2 daemon. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Icinga 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Icinga是德国Icinga公司的一套可扩展的服务器、网络资源监控系统。 Icinga 2 2.10.0版本至2.15.1之前版本、2.14.7版本和2.13.13版本存在代码问题漏洞，该漏洞源于创建无效引用时可能导致分段错误，任何可访问允许指定筛选表达式API端点的API用户均可利用此漏洞使Icinga 2守护进程崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Icinga icinga2 >=2.10.0, < 2.13.13 -

II. Public POCs for CVE-2025-61908

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III. Intelligence Information for CVE-2025-61908

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Same Patch Batch · Icinga · 2025-10-16 · 4 CVEs total

CVE-2025-61789 5.3 MEDIUM Icinga DB Web hidden/protected custom variables are prone to filter enumeration
CVE-2025-61907 Icinga 2 API users could access restricted values in filter expressions
CVE-2025-61909 Icinga 2 signals sent as root to processes based on PID file written by the Icinga 2 daemo

IV. Related Vulnerabilities

Same product: icinga2
Same vendor: Icinga
Same weakness: CWE-476

V. Comments for CVE-2025-61908

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