CVE-2026-89207
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).
- Published Sep 16, 2026
- CVSS 6.9 medium
- 0.4% chance of exploitation in the next 30 days (EPSS)
Affected software
In the news
- Siemens WTV676 and WTV776 CISA ·