CVE-2024-4009: Abb 2tma310010b0001 Firmware

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

Replay Attack in ABB, Busch-Jaeger, FTS Display (version 1.00) and BCU (version 1.3.0.33) allows attacker to capture/replay KNX telegram to local KNX Bus-System

Affected products

• Abb 2tma310010b0001 Firmware: before 1.02 (fixed in 1.02)
• Abb 2tma310010b0003 Firmware: before 1.02 (fixed in 1.02)
• Abb 2tma310011b0001 Firmware: before 1.02 (fixed in 1.02)
• Abb 2tma310011b0002 Firmware: before 1.02 (fixed in 1.02)
• Abb 2tma310011b0003 Firmware: before 1.02 (fixed in 1.02)

Published 2024-06-05. Last modified 2026-06-17.