Advisoriesby IbisSiemensCVE-2026-89207
Siemens WTV676-HB6035 Web Interface: unauthenticated remote attacker could...
Fix: upgrade to V3.94 or later (2 fixed versions below)
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).
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| WTV676-HB6035 Web Interface Product | < V3.94 | V3.94 |
| WTV776-HB6035 Web Interface Product | < V4.17 | V4.17 |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-1287