CVE-2025-39665

MEDIUM

Nagvis < 1.9.48 - Unauthenticated User Enumeration via Checkmk MultisiteAuth

Title source: llm

User enumeration in Nagvis' Checkmk MultisiteAuth before version 1.9.48 allows an unauthenticated attacker to enumerate Checkmk usernames.

Core 2

Core References

Patch

Release Notes, Vendor Advisory

CVSS v3 5.3

EPSS 0.0022

EPSS Percentile 12.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

CWE

CWE-203

Status published

Products (1)

nagvis/nagvis < 1.9.48

Published Dec 03, 2025

Tracked Since Feb 18, 2026