Description
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.
Scores
CVSS v4
8.7
EPSS
0.0003
EPSS Percentile
7.6%
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-602
Status
published
Products (1)
Viessmann/Vitogate 300
1 - 3.0.0.0
Published
Sep 23, 2025
Tracked Since
Feb 18, 2026