CVE-2025-9495CWE-602

CVE-2025-9495

published September 23, 2025

CVSS
8.7
EPSS
0%
Percentile
14.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
8.7 · NONE
CVSS v4.0
Not supplied
EPSS
0.00241 · 14.3th percentile
Weakness
CWE-602 · Client-Side Enforcement of Server-Side Security
Published
2025-09-23T06:15Z
References (1)
EPSS history
Timeline
  • 23 SEP 01:16Z
    Viessmann Vitogate 300 Authentication Bypass
    cvelistv5