CVE-2026-89207
Medium
Description
A vulnerability has been identified in WTV676-HB6035 Web Interface (All versions < V3.94), WTV776-HB6035 Web Interface (All versions < V4.17). Affected devices do not properly validate input received from backend services. This could allow an unauthenticated remote attacker to force the device into protection mode, which results in losing remote connectivity functions (Web Access).
SeverityMedium
CVSS6.5
Exploit probability—
ProductWTV676-HB6035 Web Interface
PublishedSep 16, 2026
First seenSep 16, 2026
Weakness typeCWE-1287CWE-1287
How to fix
Update
- Siemens WTV676-HB6035 Web InterfaceV3.94 or later
- Siemens WTV776-HB6035 Web InterfaceV4.17 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Siemens WTV676-HB6035 Web Interface | v < V3.94 | V3.94 |
| Siemens WTV776-HB6035 Web Interface | v < V4.17 | V4.17 |
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