Description
Microsoft has release updates to address CVE-2019-1491, a vulnerability in SharePoint Server. It is recommended that you take the necessary precautions by ensuring your products are always updated.
The Guyana National CIRT recommends users and administration to review Microsoft Security Advisory for CVE-2019-1491 and to apply the December updates where necessary.
Reference
Microsoft Releases Information on CVE-2019-1491(US-Cert)