# CVE-2025-4008: MeteoBridge - RCE

> Live exploitation tracking for CVE-2025-4008 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2025-4008

## Key facts

- **Exploitation phase:** Limited Exploitation. The vulnerability is known but shows very limited attacker interest or exploitation activity.
- **CVSS score:** 8.7
- **Public exploit available:** Yes
- **Affected products:** Smartbedded MeteoBridge
- **Weaknesses:** CWE-77 (Improper Neutralization of Special Elements used in a Command ('Command Injection')); CWE-306 (Missing Authentication for Critical Function)
- **Tags:** iot, web_application

## Description

The MeteoBridge web interface let meteobridge administrator manage their weather station data collection and administer their meteobridge system through a web application written in CGI shell scripts and C.

This web interface exposes an endpoint that is vulnerable to command injection.

Remote unauthenticated attackers can gain arbitrary command execution with elevated privileges ( root ) on affected devices.

## CrowdSec analysis

[CVE-2025-4008](https://euvd.enisa.europa.eu/vulnerability/CVE-2025-4008) is a critical command injection vulnerability in the MeteoBridge web interface, allowing remote unauthenticated attackers to execute arbitrary commands as root on affected devices. This flaw could be exploited to fully compromise weather station systems, potentially leading to data manipulation, device takeover, or use in broader network attacks.

CrowdSec has been tracking this vulnerability and its exploits since 15th of April 2026.

Insights from the CrowdSec network reveal that the attackers trying to exploit CVE-2025-4008 are composed of a fairly even mix of opportunistic and targeted actors. Some attackers employ preliminary reconnaissance, while others use indiscriminate scanning.
Telemetry from the CrowdSec network also shows that exploitation activity for CVE-2025-4008 remains steady week-over-week. Attack volumes are consistent with long-term trends, indicating sustained interest from threat actors. CVE-2025-4008 continues to be an active part of the threat landscape and will likely remain this way for the forseeable future.

Attackers exploit the `/public/template.cgi` endpoint by injecting OS commands into the `templatefile` parameter, enabling unauthenticated remote code execution with root privileges on vulnerable MeteoBridge devices.

## Timeline

- 2025-05-21: CVE Published. CVE-2025-4008 is published to NVD.
- 2025-10-02: CISA KEV. CVE-2025-4008 is added to the Known Exploited Vulnerabilities catalog by CISA.
- 2025-10-23: CISA Remediation Deadline. Expiration of the CISA remediation deadline as described in [BOD 22-01](https://www.cisa.gov/news-events/directives/bod-22-01-reducing-significant-risk-known-exploited-vulnerabilities).
- 2026-04-15: Rule Released. CrowdSec releases a rule to detect CVE-2025-4008 exploitation attempts against the CrowdSec Network.
- 2026-04-20: CrowdSec First Seen. CrowdSec observes in-the-wild exploitation of CVE-2025-4008 for the first time.

## References

- https://www.onekey.com/resource/security-advisory-remote-command-execution-on-smartbedded-meteobridge-cve-2025-4008
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-4008
- https://forum.meteohub.de/viewtopic.php?t=18687
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-4008.yaml

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2025-4008) follows observed exploitation activity for CVE-2025-4008. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.