CVE-2025-39665
5.3
MEDIUM
CVSS 3.1
EPSS 0.07%
Description
User enumeration in Nagvis' Checkmk MultisiteAuth before version 1.9.48 allows an unauthenticated attacker to enumerate Checkmk usernames.
How to fix CVE-2025-39665
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Debian/nagvis—no fix listed
Is CVE-2025-39665 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |