Microsoft has published the September 2019 Security Updates

The September security release consists of security updates for the following software:

Microsoft Windows
Internet Explorer
Microsoft Edge (EdgeHTML-based)
ChakraCore
Microsoft Office and Microsoft Office Services and Web Apps
Adobe Flash Player
Microsoft Lync
Visual Studio
Microsoft Exchange Server
.NET Framework
Microsoft Yammer
.NET Core
ASP.NET
Team Foundation Server
Project Rome

Please note the following information regarding the security updates:

A list of the latest servicing stack updates for each operating system can be found in ADV990001. This list will be updated whenever a new servicing stack update is released. It is important to install the latest servicing stack update.
Windows 10 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the Microsoft Update Catalog.
Updates for Windows RT 8.1 and Microsoft Office RT software are only available via Windows Update.
For information on lifecycle and support dates for Windows 10 operating systems, please see Windows Lifecycle Facts Sheet.
In addition to security changes for the vulnerabilities, updates include defense-in-depth updates to help improve security-related features.
Starting in May 2019, Internet Explorer 11 is available on Windows Server 2012. This configuration is present only in the IE Cumulative package.

The following CVEs have FAQs with additional information and may include * further steps to take after installing the updates. Please note that this is not a complete list of CVEs for this release.

ADV190022
ADV990001
CVE-2019-1142 *
CVE-2019-1209
CVE-2019-1216
CVE-2019-1219
CVE-2019-1231
CVE-2019-1240
CVE-2019-1241
CVE-2019-1242
CVE-2019-1243
CVE-2019-1244
CVE-2019-1245
CVE-2019-1246
CVE-2019-1247
CVE-2019-1248
CVE-2019-1249
CVE-2019-1250
CVE-2019-1251
CVE-2019-1252
CVE-2019-1254
CVE-2019-1257
CVE-2019-1259
CVE-2019-1260
CVE-2019-1261
CVE-2019-1262
CVE-2019-1263
CVE-2019-1264
CVE-2019-1265 *
CVE-2019-1274
CVE-2019-1282
CVE-2019-1283
CVE-2019-1286
CVE-2019-1293
CVE-2019-1295
CVE-2019-1296
CVE-2019-1297
CVE-2019-1299

Known Issues

KB Article Applies To
4512578 Windows 10, version 1809, Windows Server 2019
4513696 Visual Studio 2015
4515384 Windows 10, version 1903, Windows Server version 1903
4515832 Microsoft Exchange Server 2019 and Exchange Server 2016
4516044 Windows 10, version 1607, Windows Server 2016
4516046 Internet Explorer
4516055 Windows Server 2012 (Monthly Rollup)
4516058 Windows 10, version 1803, Windows Server version 1803
4516062 Windows Server 2012 (Security-only update)
4516064 Windows 8.1, Windows Server 2012 R2 (Security-only update)
4516065 Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Monthly Rollup)
4516066 Windows 10, version 1709
4516067 Windows 8.1, Windows Server 2012 R2 (Monthly Rollup)
4516068 Windows 10, version 1703
4516070 Windows 10

  Microsoft September 2019 Security Updates