CVE-2024-23943: Mb Connect Line MBCONNECT24

Critical severity, CVSS 9.1. EPSS: 0.6% chance of exploitation in the next 30 days.

An unauthenticated remote attacker can gain access to the cloud API due to a lack of authentication for a critical function in the affected devices. Availability is not affected.

Affected products

• Mb Connect Line MBCONNECT24: before 2.16.2 (fixed in 2.16.2)
• Mb Connect Line Mbnet: before 8.2.0 (fixed in 8.2.0)
• Mb Connect Line Mbnet.rokey: before 8.2.0 (fixed in 8.2.0)
• Mb Connect Line MYMBCONNECT24: before 2.16.2 (fixed in 2.16.2)

Published 2025-03-18. Last modified 2026-06-17.