CVE-2023-29105

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-09 · updated 2026-10-23
Weakness: CWE-544

Description

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

How to fix

Upgrade to a fixed version: Siemens 6Gk1411-1Ac00 Firmware 2.1; Siemens 6Gk1411-5Ac00 Firmware 2.1. Check the vendor advisory for mitigations.

References

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