OMENWAVE modelled vulnerability-chaining pathways

CVE-2021-25296

Nagios XI version xi-5.7.5 is affected by OS command injection. The vulnerability exists in the file /usr/local/nagiosxi/html/includes/configwizards/windowswmi/windowswmi.inc.php due to improper sanitization of authenticated user-controlled input by a single HTTP request, which can lead to OS command injection on the Nagios XI server.

8.8
CVSS High
71.9%
EPSS p99
YES
In CISA KEV

Data as of 2 Nov 2026 · NVD, CISA KEV, EPSS

Why chaining, at machine speed

Defenders still triage vulnerabilities one CVE at a time, while increasingly automated attackers combine them at machine speed. Omenwave models the plausible pathways by which this CVE could be chained with others — surfacing them for research and awareness, with evidence for each step.

Modelled capability profile
Kill-chain stage
EXECUTION
Requires
USER access, NETWORK vector
Grants
USER access
Capabilities
code execution
Model confidence
medium · CVSS 3.1
Top plausible next hops
CVE-2019-15949EXECUTION → EXECUTIONhigh plausibility · KEV

The access level the source grants already meets or exceeds the access level the destination requires — the position carries over.

Nagios XI before 5.6.6 allows remote command execution as root. The exploit requires access to the server as the nagios user, or access as the admin…

CVE-2021-25298EXECUTION → EXECUTIONhigh plausibility · KEV

The access level the source grants already meets or exceeds the access level the destination requires — the position carries over.

Nagios XI version xi-5.7.5 is affected by OS command injection. The vulnerability exists in the file /usr/local/nagiosxi/html/includes/configwizards/…

CVE-2021-25297EXECUTION → EXECUTIONhigh plausibility · KEV

The access level the source grants already meets or exceeds the access level the destination requires — the position carries over.

Nagios XI version xi-5.7.5 is affected by OS command injection. The vulnerability exists in the file /usr/local/nagiosxi/html/includes/configwizards/…

CVE-2019-1003030EXECUTION → PRIV_ESCmedium plausibility · KEV

The access level the source grants already meets or exceeds the access level the destination requires — the position carries over.

A sandbox bypass vulnerability exists in Jenkins Pipeline: Groovy Plugin 2.63 and earlier in pom.xml, src/main/java/org/jenkinsci/plugins/workflow/cp…

CVE-2021-34523EXECUTION → PRIV_ESCmedium plausibility · KEV

The source lands the attacker on the host (code execution or an established foothold), which satisfies the destination's requirement for local access.

Microsoft Exchange Server Elevation of Privilege Vulnerability

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Modelled plausible chaining potential derived from public CVE metadata (CVSS, CWE, CPE). Not a confirmed real-world exploit chain and contains no exploitation detail. For research and awareness only.

Methodology · Interactive explorer · JSON: /cve/CVE-2021-25296