Hi Mario,
Python 3 will be actively being used if you are using your commserve as a metrics server. Its part of the upload of data process for the for the data into the metric database.
In regards to this Python vulnerability, you can safely manually upgrade Python to the latest supported version of 3.9.5 which should correct the detected vulnerability.
You can download the latest version of Python 3 (3.8.9 or 3.9.5) here: https://www.python.org/downloads/
Please follow these steps for the cleanup of previous version of python and update to python 3.8.9.
1. In OS control panel make sure there are no other version of python other than 3.8.1 is installed
2. Uninstall python launcher from control panel
3. Refer registry and confirm only python 3.8 is installed HKLM\Software\Python\PythonCore.
4. In path ‘C:\Program Files’ if folder python36 still exist you can delete them.
5. Stop Commvault services, make sure no python is running at OS level (refer from task manager)
6. Download 64 bit installer https://www.python.org/downloads/windows/, run as administrator and choose upgrade in install screen
7. If you don’t get upgrade option choose customize
8. Uncheck ‘Documentation’, ‘tcl\tk and IDLE’, ‘’Python test suite’ and ‘py launcher’
9. In path choose ‘C:\Program Files\Python38’