CVE-2026-2042 json
Nagios Host monitoringwizard Command Injection Remote Code Execution Vulnerability
published 2026-02-20 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-7771
- cvss
- 7.2
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 6.1%
- EPSS 6.1% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
Nagios Host monitoringwizard 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 monitoringwizard module. 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-28245.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 8 mo ago
Exploit prediction
6.08% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.2 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Nagios Host
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
nagios.com
/changelog/nagios-xi/nagios-xi-2026r1-0-1/
vendor-advisory, product, release-notes
-
zerodayinitiative.com
/advisories/ZDI-26-071/
third-party-advisory
Sources
- CVE List CVE-2026-2042
- NVD CVE-2026-2042
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