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Actively exploited in the wild. This CVE is on the CISA Known Exploited Vulnerabilities list — treat remediation as urgent. Federal remediation due by 23 Oct 2025.
Meteobridge VmApplication · Smartbedded

CVE-2025-4008

HIGH · 8.8 CVSS v3.1 Published 2025-05-21
Fix available
A fix is available. Upgrade to 6.2 or later.
See remediation →
99/100
Remediation priority · Urgent
In the wild High EPSS Public exploit No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

The Meteobridge web interface, built using CGI shell scripts and C, contains a command injection vulnerability in an exposed endpoint. Remote unauthenticated attackers can execute arbitrary commands with root privileges on affected devices.

MitigationRestrict network access to the Meteobridge web interface by placing it behind a firewall or VPN, as the vulnerability is remotely exploitable without authentication.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Meteobridge VmApplication
Affected:< 6.2
Meteobridge FirmwareOperating system
Affected:< 6.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Meteobridge version
    Access the Meteobridge web interface and navigate to System > Information, or run 'mbutil -V' via SSH if available, to determine the installed firmware or VM version.
    Affected if The displayed version is below 6.2 (e.g., 6.1, 6.0, 5.x, etc.)
  2. Confirm web interface is network-accessible
    Check if the Meteobridge device is reachable on its HTTP/HTTPS ports (typically 80/443) from external networks or the internet by attempting a remote connection or reviewing firewall rules.
    Affected if The web interface is exposed to untrusted networks without firewall or VPN protection
  3. Verify CGI endpoint is enabled
    Access the web interface and attempt to reach a CGI endpoint (e.g., /cgi-bin/... or endpoints that accept user input via GET/POST parameters). Check the Meteobridge configuration to confirm CGI script execution is permitted.
    Affected if CGI endpoints are enabled and accessible without authentication
  4. Review access logs for suspicious activity
    Examine Meteobridge logs (typically available via the web interface under Logs or via /var/log/httpd-access.log) for unusual or unexpected command strings, particularly those containing shell metacharacters like ; | & $ ( ) or backticks.
    Affected if Logs show requests with shell metacharacters or unexpected command patterns to CGI endpoints

You are affected if your Meteobridge version is below 6.2 AND the web interface with CGI endpoints is accessible from untrusted networks.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 6.2 or later
Fixed in 6.2
Interim mitigation

Restrict network access to the Meteobridge web interface by placing it behind a firewall or VPN, as the vulnerability is remotely exploitable without authentication.

Recommended fix High confidence

Meteobridge version 6.2 (or later)

  1. 1. Identify the current Meteobridge version by accessing the web interface or checking the system information.
  2. 2. Navigate to the official Meteobridge download page or repository to obtain version 6.2 or later.
  3. 3. If using Meteobridge VM, download the updated VM image version 6.2 or newer.
  4. 4. If using Meteobridge Firmware, download the firmware update file version 6.2 or newer.
  5. 5. Apply the upgrade following the official Meteobridge upgrade documentation.
  6. 6. After upgrade, verify the system is running version 6.2 or later.
  7. 7. Confirm the command injection vulnerability is patched by verifying the vulnerable endpoint no longer accepts injectable input.

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Meteobridge Vm Exploited in the wild — priority engagement
  • Consultation3.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA3.0 h
18.0 hours of engineering $3,180
Get it fixed fast

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,088.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-4008 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data