Microsoft has published the Microsoft Security Update releases for December 15, 2020 with 5 updates.

Microsoft Security Update Releases Issued: December 15, 2020

Summary
=======

The following CVEs have undergone a major revision increment:

* CVE-2020-17119
* CVE-2020-17123
* CVE-2020-17124
* CVE-2020-17126
* CVE-2020-17128


Revision Information:
=====================

* CVE-2020-17119

- CVE-2020-17119 | Microsoft Outlook Information Disclosure Vulnerability
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17119
- Version 2.0
- Reason for Revision: Microsoft is announcing the availability of the security
updates for Microsoft Office for Mac. Customers running affected Mac software
should install the update for their product to be protected from this
vulnerability. Customers running other Microsoft Office software do not need to take
any action. See the Release Notes for more information and download links.
- Originally posted: December 8, 2020
- Updated: December 15, 2020
- Aggregate CVE Severity Rating: Important


* CVE-2020-17123

- CVE-2020-17123 | Microsoft Excel Remote Code Execution Vulnerability
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17123
- Version 2.0
- Reason for Revision: Microsoft is announcing the availability of the security
updates for Microsoft Office for Mac. Customers running affected Mac software
should install the update for their product to be protected from this
vulnerability. Customers running other Microsoft Office software do not need to take
any action. See the Release Notes for more information and download links.
- Originally posted: December 8, 2020
- Updated: December 15, 2020
- Aggregate CVE Severity Rating: Important


* CVE-2020-17124

- CVE-2020-17124 | Microsoft PowerPoint Remote Code Execution Vulnerability
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17124
- Version 2.0
- Reason for Revision: Microsoft is announcing the availability of the security
updates for Microsoft Office for Mac. Customers running affected Mac software
should install the update for their product to be protected from this
vulnerability. Customers running other Microsoft Office software do not need to take
any action. See the Release Notes for more information and download links.
- Originally posted: December 8, 2020
- Updated: December 15, 2020
- Aggregate CVE Severity Rating: Important


* CVE-2020-17126

- CVE-2020-17126 | Microsoft Excel Information Disclosure Vulnerability
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17126
- Version 2.0
- Reason for Revision: Microsoft is announcing the availability of the security
updates for Microsoft Office for Mac. Customers running affected Mac software
should install the update for their product to be protected from this
vulnerability. Customers running other Microsoft Office software do not need to take
any action. See the Release Notes for more information and download links.
- Originally posted: December 8, 2020
- Updated: December 15, 2020
- Aggregate CVE Severity Rating: Important


* CVE-2020-17128

- CVE-2020-17128 | Microsoft Excel Remote Code Execution Vulnerability
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17128
- Version 2.0
- Reason for Revision: Microsoft is announcing the availability of the security
updates for Microsoft Office for Mac. Customers running affected Mac software
should install the update for their product to be protected from this
vulnerability. Customers running other Microsoft Office software do not need to take
any action. See the Release Notes for more information and download links.
- Originally posted: December 8, 2020
- Updated: December 15, 2020
- Aggregate CVE Severity Rating: Important