system
Identify the affected product in <CVE-2021-31891>.
user
Which product is affected by <CVE-2021-31891>?
assistant
The affected product is Desigo CC and version: All versions with OIS Extension Module, All versions with OIS running on Debian 9 or earlier, All versions with OIS running on Debian 9 or earlier, All versions with OIS running on Debian 9 or earlier, All versions.