๐Ÿ” CVE Alert

CVE-2026-34223

HIGH 8.2
CVSS Score
8.2
EPSS Score
0.0%
EPSS Percentile
0th

A vulnerability has been identified in Desigo CC ClickOnce Client V6 (All versions), Desigo CC ClickOnce Client V7 (All versions), Desigo CC family V8 (All versions), Desigo CC family V9 (All versions), Desigo CC Flex Client V6 (All versions), Desigo CC Flex Client V7 (All versions), Desigo CC Installed Client V6 (All versions), Desigo CC Installed Client V7 (All versions). The affected application is vulnerable to Client Code Execution (CCE) due to insufficient input validation when handling scripts embedded within user-defined graphics documents. Specifically, when the script within a graphics document is designed or modified by an attacker to include malicious commands. When a user opens a compromised graphics document, the embedded script is executed on the client application instance, allowing an attacker to write arbitrary files to the client's operating system. Successful exploitation requires an attacker to craft a malicious graphics document and entice a user with sufficient privileges to display it. This could lead to compromise of the client operating system and potential lateral movement within the organization.

CWE CWE-94
Vendor siemens
Product desigo cc clickonce client v6
Ecosystems
Industries
IndustrialManufacturing
Published Sep 8, 2026
Last Updated Sep 14, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

Siemens / Desigo CC ClickOnce Client V6
0 < *
Siemens / Desigo CC ClickOnce Client V7
0 < *
Siemens / Desigo CC family V8
All versions affected
Siemens / Desigo CC family V9
All versions affected
Siemens / Desigo CC Flex Client V6
All versions affected
Siemens / Desigo CC Flex Client V7
All versions affected
Siemens / Desigo CC Installed Client V6
0 < *
Siemens / Desigo CC Installed Client V7
0 < *

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-330084.html