CVE-2021-31891: Siemens Desigo Cc

Critical severity, CVSS 10.0. EPSS: 3.8% chance of exploitation in the next 30 days.

A vulnerability has been identified in Desigo CC (All versions with OIS Extension Module), GMA-Manager (All versions with OIS running on Debian 9 or earlier), Operation Scheduler (All versions with OIS running on Debian 9 or earlier), Siveillance Control (All versions with OIS running on Debian 9 or earlier), Siveillance Control Pro (All versions). The affected application incorrectly neutralizes special elements in a specific HTTP GET request which could lead to command injection. An unauthenticated remote attacker could exploit this vulnerability to execute arbitrary code on the system with root privileges.

Affected products

• Siemens Desigo Cc: any version
• Siemens Gma-Manager: any version
• Siemens Operation Scheduler: any version
• Siemens Siveillance Control: any version
• Siemens Siveillance Control Pro: any version

Published 2021-09-14. Last modified 2026-06-17.