Vulnerability details
CVE-2026-2043
Nagios Host
Nagios Host esensors_websensor_configwizard_func Command Injection Remote Code Execution Vulnerability
CVSS 3.0
7.2High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.2High | 3.0 | CVEProject cvelistV5 (CNA) (zdi) | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Nagios | Host | 2026R1 | CVEProject cvelistV5 (CNA) |
References and advisories
2- https://www.zerodayinitiative.com/advisories/ZDI-26-072/ x_research-advisory
- https://www.nagios.com/changelog/nagios-xi/nagios-xi-2026r1-0-1/ vendor-advisory
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Details
- Published
- 2026-02-21
- Last updated
- 2026-02-26
- State
- Published
- Assigner (CNA)
- zdi
Exploit prediction (EPSS)
75.42%
Probability of exploitation in 30 days
99.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')