# CVE-2023-29105

## Summary

- **CVE ID:** CVE-2023-29105
- **Severity:** MEDIUM
- **CVSS Score:** 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C)
- **CWE:** CWE-544
- **Published:** May 9, 2023
- **Last Modified:** Mar 13, 2026

## 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 — SIMATIC Cloud Connect 7 CC712 (All versions >= V2.0 < V2.1)
- Siemens — SIMATIC Cloud Connect 7 CC712 (All versions < V2.1)
- Siemens — SIMATIC Cloud Connect 7 CC716 (All versions >= V2.0 < V2.1)
- Siemens — SIMATIC Cloud Connect 7 CC716 (All versions < V2.1)

## References

- [CNA](https://cert-portal.siemens.com/productcert/pdf/ssa-555292.pdf)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.30%
- **EPSS Percentile:** 52.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._