CVE-2025-39665

Livestatus Injection in dynmaps

6.9 MediumFix available

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

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.27%Up 0.2 points since Dec 3, 2025

What each source reports

CVE List Score used 6.9

Livestatus Injection in dynmaps

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

Record: CVE-2025-39665
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-203
Updated: 2026-11-02

EUVDEUVD-2025-200737 6.9

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

Record: EUVD-2025-200737
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-2x34-p5xr-4cq8 6.9

User enumeration in Nagvis' Checkmk MultisiteAuth before version 1.9.48 allows an unauthenticated...

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

Record: GHSA-2x34-p5xr-4cq8
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-203
Updated: 2026-11-02

NVD 6.9

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

Record: CVE-2025-39665
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-203
Updated: 2026-11-02

OSV 6.9

Livestatus Injection in dynmaps

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

Record: CVE-2025-39665
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-203
Updated: 2026-11-02

OSVDEBIAN-CVE-2025-39665 5.3

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

Record: DEBIAN-CVE-2025-39665
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2025-39665 6.9

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

Record: UBUNTU-CVE-2025-39665
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

Affected products

nagvis

Affected packages

Affected packages
Package	Affected	Fixed
`nagvis` Debian:12	All versions, plus listed versions 1:1.10.0-11:1.10.1-11:1.10.2-11:1.10.3-11:1.10.4-1 Show 20 moreShow less 1:1.10.5-11:1.10.6-11:1.9.34-11:1.9.35-11:1.9.35-1~exp11:1.9.36-11:1.9.37-11:1.9.38-11:1.9.39-11:1.9.40-11:1.9.41-11:1.9.42-11:1.9.43-11:1.9.44-11:1.9.45-11:1.9.46-11:1.9.47-11:1.9.47-1~exp11:1.9.48-11:1.9.49-1	None known
`nagvis` Debian:13	All versions, plus listed versions 1:1.10.0-11:1.10.1-11:1.10.2-11:1.10.3-11:1.10.4-1 Show 5 moreShow less 1:1.10.5-11:1.10.6-11:1.9.47-11:1.9.48-11:1.9.49-1	None known
`nagvis` Debian:14	before 1:1.9.48-1, plus listed versions 1:1.9.47-1	1:1.9.48-1
`nagvis` Ubuntu:16.04:LTS	All versions, plus listed versions 1:1.7.10+dfsg1-31:1.7.10+dfsg1-3ubuntu1	None known
`nagvis` Ubuntu:18.04:LTS	All versions, plus listed versions 1:1.7.10+dfsg1-3.2	None known
`nagvis` Ubuntu:22.04:LTS	All versions, plus listed versions 1:1.9.25-21:1.9.27-11:1.9.28-11:1.9.29-11:1.9.30-1	None known
`nagvis` Ubuntu:24.04:LTS	All versions, plus listed versions 1:1.9.36-11:1.9.38-11:1.9.39-11:1.9.40-1	None known
`nagvis` Ubuntu:25.10	All versions, plus listed versions 1:1.9.44-11:1.9.46-11:1.9.47-1	None known
`nagvis` Ubuntu:26.10	All versions, plus listed versions 1:1.9.48-11:1.10.3-11:1.10.4-11:1.10.5-11:1.10.6-1	None known
`nagvis` Ubuntu:26.04:LTS	All versions, plus listed versions 1:1.9.47-11:1.9.48-1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-39665 is a medium vulnerability (CVSS 6.9) in Nagvis, published December 3, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 20th percentile. Fixed in nagvis 1:1.9.48-1.

Attack profile

How easy it is to exploit

What an attacker can affect

Exploit likelihood

What each source reports

Affected products

Affected packages

History

In short

References