CVE-2025-9495 — Viessmann Vitogate 300 Authentication Bypass

CVE-2025-9495

Viessmann Vitogate 300 Authentication Bypass PUBLISHED

Description (CNA)

The Vitogate 300 web interface fails to enforce proper server-side authentication and relies on frontend-based authentication controls. This allows an attacker to simply modify HTML elements in the browser’s developer tools to bypass login restrictions. By removing specific UI elements, an attacker can reveal the hidden administration menu, giving them full control over the device.

Affected (CNA)

Vendor / product	Versions
Viessmann / Vitogate 300	affected 1 before 3.0.0.0

CWE

CWE-602

References

https://https://www.corporate.carrier.com/product-security/advisories-resources/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.