CVE-2026-2043
Nagios Host esensors_websensor_configwizard_func Command Injection Remote Code Execution Vulnerability.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 75.4%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
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 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 75.42% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- nagios/nagios xi
- Source
- zdi-disclosures@trendmicro.com
EPSS moved from 75.4% on 18 October 2026 to 75.4% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://www.nagios.com/changelog/nagios-xi/nagios-xi-2026r1-0-1/Product, Release Notes
- https://www.zerodayinitiative.com/advisories/ZDI-26-072/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.