CVE-2026-89207

MEDIUM

6.5

CVSS Score

Published: September 16, 2026 at 07:59 AM UTC

Updated: September 18, 2026 at 07:39 PM UTC

2 products affected across 1 vendorWTV776-HB6035WTV676-HB6035

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Severity

MEDIUM6.5

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

WTV676-HB6035 · Siemens

60%

v < V3.94

Affected range stops below V3.94, so it looks safe — our inference, not a vendor statement

WTV776-HB6035 · Siemens

60%

v < V4.17

Affected range stops below V4.17, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord

https://cert-portal.siemens.com/productcert/html/ssa-823812.html

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMsiemens

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-1287

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