CVE-2023-29105

HIGH
7.5
CVSS Score
Published: May 9, 2023 at 11:51 AM UTC
Updated: October 23, 2026 at 11:10 PM UTC
4 products affected across 1 vendor6GK1411 1AC00 Firmware6GK1411 5AC00 FirmwareSIMATIC Cloud Connect 7 CC716 Firmware· also runs on 2 platforms

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.1
Affected range stops below 2.1, so it looks safe — our inference, not a vendor statement
siemens-6gk1411-1ac00 (same device)
v < 2.1
Affected range stops below 2.1, so it looks safe — our inference, not a vendor statement
siemens-6gk1411-5ac00 (same device)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-544

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