2025-12-03
[email protected]
5.3
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Lifecycle Timeline
4
Analysis Generated
Mar 15, 2026 - 16:14 vuln.today
EUVD ID Assigned
Mar 15, 2026 - 16:14 euvd
EUVD-2025-200737
Patch Released
Mar 15, 2026 - 16:14 nvd
Patch available
CVE Published
Dec 03, 2025 - 10:15 nvd
MEDIUM 5.3
Description
User enumeration in Nagvis' Checkmk MultisiteAuth before version 1.9.48 allows an unauthenticated attacker to enumerate Checkmk usernames.
Analysis
CVE-2025-39665 is a security vulnerability (CVSS 5.3) that allows an unauthenticated attacker. Remediation should follow standard vulnerability management procedures. Vendor patch is available.
Technical Context
Vulnerability type not specified by vendor.
Affected Products
['Unspecified product']
Remediation
Apply the vendor-supplied patch immediately.
Priority Score
27
Low
Medium
High
Critical
KEV: 0
EPSS: +0.1
CVSS: +26
POC: 0
Vendor Status
Ubuntu
Priority: Mediumnagvis
| Release | Status | Version |
|---|---|---|
| xenial | needs-triage | - |
| bionic | needs-triage | - |
| jammy | needs-triage | - |
| noble | needs-triage | - |
| questing | needs-triage | - |
| upstream | released | 1:1.9.48-1 |
| plucky | ignored | end of life, was needs-triage |
Debian
nagvis
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | vulnerable | 1:1.9.25-2 | - |
| bullseye (security) | vulnerable | 1:1.9.25-2+deb11u2 | - |
| bookworm | vulnerable | 1:1.9.34-1 | - |
| trixie | vulnerable | 1:1.9.47-1 | - |
| forky, sid | fixed | 1:1.9.48-1 | - |
| (unstable) | fixed | 1:1.9.48-1 | - |
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External POC / Exploit Code
Leaving vuln.today
Destination URL
POC code from unknown sources may be malicious, contain backdoors, or be fake.
Always review and test exploit code in a safe, isolated environment (VM/sandbox).
Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).
EUVD-2025-200737