CVE-2026-89207

MEDIUM CVSS 4.0: 6.9 EPSS 0.43%
Updated Sep 18, 2026
Siemens
Parameter Value
CVSS 6.9 (MEDIUM)
Type CWE-1287
Vendor Siemens
Public PoC No

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).

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products

siemens:wtv676-hb6035 web interface siemens:wtv776-hb6035 web interface