CVE-2025-41734
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 · uneditedAn unauthenticated remote attacker can execute arbitrary php files and gain full access of the 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 confidenceThis is a critical unauthenticated remote code execution vulnerability allowing attackers to execute arbitrary PHP files on affected devices without any credentials. The attacker can deploy malicious PHP scripts to gain complete control over the device, potentially leading to data exfiltration, lateral movement, or use as a bot in larger attacks.
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< 2.2.0< 2.2.0< 2.2.0CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/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 checksWork through these to decide whether this CVE applies to you.
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Identify the device modelAccess the device web interface or admin panel and locate the device information or system status page to confirm the exact model (Ewio2 M, Ewio2 M Bm, or Ewio2 Bm)Affected if The device is a Metz Connect Ewio2 variant
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Check the installed firmware versionIn the device web interface, navigate to the firmware or software version information section (often under System, Status, or About). Note the firmware version number displayed.Affected if The firmware version is less than 2.2.0 or cannot be determined to be 2.2.0 or higher
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Verify network exposure of the web interfaceCheck the device network settings to determine if the web-based management interface is bound to an IP address accessible from untrusted or public networks (such as 0.0.0.0 or WAN-facing interfaces)Affected if The web interface is accessible from untrusted or public network segments without authentication barriers
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Look for unexpected PHP files on the deviceIf you have file system access or logging capabilities, search the web root directory for unexpected .php files that were not deployed by your organization, or review web server access logs for suspicious PHP execution requestsAffected if Unexpected PHP files exist in web directories or logs show PHP execution requests to unknown scripts
You are affected if the device is a Metz Connect Ewio2, Ewio2 M, or Ewio2 Bm model running firmware version below 2.2.0 and its web interface is exposed to untrusted networks.
Generated from the published advisory. Verify against your own configuration.
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 · scoped2.2.0
Immediately restrict network exposure of affected devices to trusted networks, implement web application firewall rules to block suspicious PHP execution patterns, and apply vendor-supplied patches as soon as available. If exploitation is suspected, conduct a full forensic investigation and incident response.
Ewio2 M Firmware 2.2.0 / Ewio2 M Bm Firmware 2.2.0 / Ewio2 Bm Firmware 2.2.0 (or later)
- Identify the exact Ewio2 device model (Ewio2 M, Ewio2 M Bm, or Ewio2 Bm) in your environment
- Download firmware version 2.2.0 or later from the device manufacturer's official website or support portal
- Review the firmware upgrade instructions provided by the manufacturer
- Perform a backup of the current device configuration if supported
- Upload and apply firmware version 2.2.0 to the affected device(s)
- Verify the firmware upgrade was successful by checking the device's firmware version information
- Confirm the device is functioning normally post-upgrade
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-41734 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-41734 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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