CVE-2025-41733 Details
Description
The commissioning wizard on the affected devices does not validate if the device is already initialized. An unauthenticated remote attacker can construct POST requests to set root credentials.
An authentication bypass vulnerability has been identified in the METZ CONNECT EWIO2 series devices, specifically in the Energy-Controlling EWIO2-M, EWIO2-M-BM, and Ethernet-IO EWIO2-BM models, all running firmware prior to 2.2.0. This vulnerability allows unauthenticated remote attackers with network access to gain administrative control over the device. Once compromised, attackers can change configurations, manipulate data, disrupt services, and potentially render the device non-functional.
Users are advised to update to version 2.2.0 or later. Schedule the update during the next maintenance window, as no workaround provides equivalent protection.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Nov 18, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://certvde.com/de/advisories/VDE-2025-097 | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-305 | Authentication Bypass by Primary Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| metz-connect ewio2-m firmware | < 2.2.0 |
CPE
Remediation
| |
| metz-connect ewio2-m | All versions |
CPE
Remediation
| |
| metz-connect ewio2-m-bm firmware | < 2.2.0 |
CPE
Remediation
| |
| metz-connect ewio2-m-bm | All versions |
CPE
Remediation
| |
| metz-connect ewio2-bm firmware | < 2.2.0 |
CPE
Remediation
| |
| metz-connect ewio2-bm | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Nov 21, 2025 | Initial Analysis | [email protected] |
| Nov 18, 2025 | New CVE Received | [email protected] |