Microsoft adds security updates to Windows 7 and Windows 8

What are the new updates to KB4577051 and KB4577066 ?The interesting fact is that KB4577051 for Windows 7 could be one of the last security updates because the extended support for the old OS will end on October 13th:

Important

Extended support for Windows Embedded Standard 7 Service Pack 1 (WES 7) will end on October 13, 2020. Customers who have purchased the Extended Security Update (ESU) for on-site versions of some operating systems must follow specific procedures to continue receiving security updates. See KB4522133 for more information

What’s new in the Windows 7 update of KB4577051 ?

  • Updates time zone information for Yukon, Canada.
  • Addresses an issue when you evaluate the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
  • Addresses a security vulnerability issue with user proxies and HTTP-based intranet servers. After you install this update, HTTP-based intranet servers cannot leverage a user proxy to detect updates by default. Scans that use these servers will fail if the clients do not have a configured system proxy. If you must leverage a user proxy, you must configure the behavior by using the Windows Update policy Allow user proxy to be used as a fallback if detection using system proxy fails. This change does not affect customers who secure their Windows Server Update Services (WSUS) servers that use the Transport Layer Security (TLS) or Secure Sockets Layer (SSL) protocols. For more information, see Improving security for devices receiving updates via WSUS.
  • Security updates to Windows Media, Windows Input and Composition, Windows App Platform and Frameworks, Windows Graphics, Windows Cloud Infrastructure, Windows Authentication, Windows Cryptography, Windows Fundamentals, Windows Kernel, Windows Hybrid Cloud Networking, Windows Peripherals, Windows Storage and Filesystems, Windows Network Security and Containers, Windows Update Stack, the Microsoft Scripting Engine, and Windows SQL components.

What’s new about Windows 8.1 in the KB4577066 ?

The updates are the same as the ones from KB4577051 for Windows 7.

Mostly, the updates are all about fixing a security vulnerability with user proxies and HTTP-based intranet servers.

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