CVE-2026-35075 Details
Description
An unauthenticated remote attacker can recover a default, hard coded password from a firmware image and thus gain full access to all affected devices.
A vulnerability exists in MBS Universal Gateways (UGW) web GUI and firmware versions through V6_0_0_5. It involves a hardcoded default password for a service account, which an unauthenticated remote attacker can extract from the firmware image. This password allows full access to the affected devices. The vulnerability is part of a broader set of security issues in the UGW web GUI, including insufficient input validation in several CGI methods, which could lead to arbitrary file deletion, unauthorized file inclusion, process termination, and exploitation of stack-based buffer overflows for arbitrary code execution with root privileges, resulting in a complete system compromise.
Users are advised to update to firmware version V6_0_0_7, available on the MBS Firmware Update page.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 3, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.certvde.com/en/advisories/VDE-2026-039/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1393 | Use of Default Password | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mbs-solutions universal gateway firmware | < 6_00_07 |
CPE
Remediation
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| mbs-solutions double-a profibus | All versions |
CPE
Remediation
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| mbs-solutions double-a x-link | All versions |
CPE
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| mbs-solutions double-x can | All versions |
CPE
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| mbs-solutions double-x dali | All versions |
CPE
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| mbs-solutions double-x knx | All versions |
CPE
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| mbs-solutions double-x lon | All versions |
CPE
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| mbs-solutions double-x m-bus | All versions |
CPE
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| mbs-solutions double-x profinet | All versions |
CPE
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| mbs-solutions double-x x-link | All versions |
CPE
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| mbs-solutions single-a | All versions |
CPE
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| mbs-solutions single-x | All versions |
CPE
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| mbs-solutions triple-x knx+dali | All versions |
CPE
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| mbs-solutions triple-x knx+lon | All versions |
CPE
Remediation
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| mbs-solutions triple-x knx+m-bus | All versions |
CPE
Remediation
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| mbs-solutions triple-x profinet+dali | All versions |
CPE
Remediation
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| mbs-solutions triple-x profinet+knx | All versions |
CPE
Remediation
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| mbs-solutions triple-x profinet+lon | All versions |
CPE
Remediation
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| mbs-solutions triple-x profinet+m-bus | All versions |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 22, 2026 | CVE Translated | [email protected] |
| Jul 3, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 8, 2026 | Initial Analysis | [email protected] |
| Jun 3, 2026 | New CVE Received | [email protected] |