PT-2026-7953 · Unknown · Nagios Host

Vladislav Berghici · Published 2026-02-12 · Updated 2026-02-24 · CVE-2026-2043

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Nagios Host (affected versions not specified)

Description A flaw exists within the esensors websensor configwizard func method that allows remote attackers to execute arbitrary code on affected installations. Authentication is required to exploit this issue. The root cause is the lack of proper validation of user-supplied input before it is used in a system call, potentially allowing an attacker to execute code in the context of the service account.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2026-2043

ZDI-26-072

Affected Products

Nagios Host

References · 8

• https://nagios.com/changelog/nagios-xi/nagios-xi-2026r1-0-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-2043 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-26-072 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-2043 · Security Note
• https://twitter.com/TheHackerWire/status/2026373587947630595 · Twitter Post
• https://twitter.com/CVEnew/status/2024988729199497321 · Twitter Post
• https://t.me/cveNotify/152993 · Telegram Post
• https://t.me/CVEtracker/45321 · Telegram Post