CVE-2025-39665
Medium
Description
User enumeration in Nagvis' Checkmk MultisiteAuth before version 1.9.48 allows an unauthenticated attacker to enumerate Checkmk usernames.
SeverityMedium
CVSS5.3
Exploit probability—
ProductNagvis
PublishedDec 3, 2025
First seenDec 3, 2025
Weakness typeCWE-203CWE-203
How to fix
Update
- nagvis nagvis1.9.48 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nagvis nagvis | v < 1.9.48 | 1.9.48 |
Check your version
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