CVE-2025-39665

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

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/NagVis/nagvis/pull/411/commits/4acabcf9d5b2d26f390e760f59def8e163908d66	Patch
https://www.nagvis.org/downloads/changelog/1.9.48	Release Notes Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nagvis:nagvis:*:*:*:*:*:*:*:*

History

19 Dec 2025, 19:49

Type	Values Removed	Values Added
First Time		Nagvis Nagvis nagvis
CPE		cpe:2.3:a:nagvis:nagvis::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3
References	~~() https://github.com/NagVis/nagvis/pull/411/commits/4acabcf9d5b2d26f390e760f59def8e163908d66 -~~	() https://github.com/NagVis/nagvis/pull/411/commits/4acabcf9d5b2d26f390e760f59def8e163908d66 - Patch
References	~~() https://www.nagvis.org/downloads/changelog/1.9.48 -~~	() https://www.nagvis.org/downloads/changelog/1.9.48 - Release Notes, Vendor Advisory

03 Dec 2025, 10:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-03 10:15

Updated : 2025-12-19 19:49

NVD link : CVE-2025-39665

Mitre link : CVE-2025-39665

CVE.ORG link : CVE-2025-39665

JSON object : View

Products Affected

nagvis

nagvis

CWE

CWE-203

Observable Discrepancy

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