What is CVE-2026-89207?

CVE-2026-89207 is a medium-severity vulnerability in Siemens Wtv676-Hb6035 Web Interface, classified under CWE-1287. CVSS score: 6.5/10. Published 2026-09-16.

How severe is CVE-2026-89207?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Siemens Wtv676-Hb6035 Web Interface

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).

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

Siemens Wtv676-hb6035 Web Interface
Siemens Wtv776-hb6035 Web Interface

Weakness classification (CWE)

CWE-1287

References

productcert@siemens.com

Frequently asked questions

What is CVE-2026-89207?: CVE-2026-89207 is a medium-severity vulnerability in Siemens Wtv676-Hb6035 Web Interface, classified under CWE-1287. CVSS score: 6.5/10. Published 2026-09-16.
How severe is CVE-2026-89207?: Medium severity. CVSS v3 base score is 6.5 out of 10.