CVE-2024-4008 CRITICAL

CVE-2024-4008: FDSK Leak in KNX Secure Devices

Vendor Abb, Busch-Jaeger
Product 2.4! Display 55, SD/U12.55.11-825
Weakness CWE-497
Published June 5, 2024
Last update September 17, 2025

CVSS base score

9.6/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity High

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H

What the vulnerability does

01Description

FDSK Leak in ABB, Busch-Jaeger, FTS Display (version 1.00) and BCU (version 1.3.0.33) allows attacker to take control via access to local KNX Bus-System

Key dates

02Disclosure timeline

June 5, 2024 CVE published
September 17, 2025 Record updated