CVE-2023-29105: Siemens 6gk1411-1ac00 Firmware

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A vulnerability has been identified in SIMATIC Cloud Connect 7 CC712 (All versions >= V2.0 < V2.1), SIMATIC Cloud Connect 7 CC712 (All versions < V2.1), SIMATIC Cloud Connect 7 CC716 (All versions >= V2.0 < V2.1), SIMATIC Cloud Connect 7 CC716 (All versions < V2.1). The affected device is vulnerable to a denial of service while parsing a random (non-JSON) MQTT payload. This could allow an attacker who can manipulate the communication between the MQTT broker and the affected device to cause a denial of service (DoS).

Affected products

• Siemens 6gk1411-1ac00 Firmware: before 2.1 (fixed in 2.1)
• Siemens 6gk1411-5ac00 Firmware: before 2.1 (fixed in 2.1)

Published 2023-05-09. Last modified 2026-06-17.