Patchfirst
CVE-2026-2043 High · 7.2 EPSS 75.4%

Nagios Host esensors_websensor_configwizard_func Command Injection Remote Code Execution Vulnerability

Nagios · Host

Summary

The Nagios Host product contains a command injection flaw in its esensors_websensor_configwizard_func method, where a user-supplied string is passed to a system call without proper validation. An attacker with valid credentials and network access to the affected installation can exploit it to execute arbitrary code in the context of the service account.

Official description · CVE.org

Nagios Host esensors_websensor_configwizard_func Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Nagios Host. Authentication is required to exploit this vulnerability. The specific flaw exists within the esensors_websensor_configwizard_func method. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-28249.

Breakdown
25.6 / 100
Exploited
Not confirmed
Reports
0
Tactics
0/15

Disclosed on 20 Feb 2026. No public exploit code or confirmed exploitation is recorded.

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Not named in any threat report yet

Also mentioned in 1 community threat pulse (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

2 links, grouped by NVD tag
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