HOMEVULNERABILITIESCVE-2023-29105
HIGH

CVE-2023-29105

CWE-544Published: May 9, 2023· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official 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).

NVD Source

Technical Analysis

CVE-2023-29105 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

siemens4 product(s)
6gk1411-1ac00 firmware6gk1411-1ac006gk1411-5ac00 firmware6gk1411-5ac00
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://cert-portal.siemens.com/productcert/pdf/ssa-555292.pdf
PATCHhttps://cert-portal.siemens.com/productcert/pdf/ssa-555292.pdf

All References (2)

→
https://cert-portal.siemens.com/productcert/pdf/ssa-555292.pdfPatch · Vendor Advisory
→
https://cert-portal.siemens.com/productcert/pdf/ssa-555292.pdfPatch · Vendor Advisory

Quick Facts

CVE IDCVE-2023-29105
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-544
CISA KEVNo
Affected1 vendor(s)
PublishedMay 9, 2023

Related CVEs (CWE-544)

CVE-2024-47971
6.5
CVE-2024-41768
6.5
CVE-2020-5359
5.8
CVE-2025-11750
5.3
CVE-2021-47482
5.3
CVE-2023-6599
4.3

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-29105 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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