Identify the affected product in CVE-2021-31939.
Which product is affected by CVE-2021-31939?
The affected product is Office Online Server and version: https://aka.ms/OfficeSecurityReleases, 19.0.0, 16.0.1, 16.0.0.0, 16.0.0, 15.0.0.0, 15.0.0, 15.0.1.