Weekly briefing

Week 29 · 13 Jul – 19 Jul 2026 UTC · assess the changes, then plan the next dates.

All dated changes in this period

254 source records · 128 groups

14 Jul 2026

Message CenterPurview3 source records

Notice updated · 3 entries

MC1338823: Microsoft Purview | Data Loss Prevention – Block external domain or user access for SharePoint and OneDrive
Notice updated · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Purview
Assessment context
Microsoft marks it a major change
MC1185445: Microsoft Purview compliance portal: Purview Information Protection | Classifier Simulation Mode (Health Monitoring)
Notice updated · Reference tenants · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Purview
MC1385583: (Updated) Microsoft Purview | Data Lifecycle Management - Power Automate integration with records management
Notice updated · Reference tenants · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Purview

14 Jul 2026

Message CenterTeams4 source records

Message Center · Prevent or fix issues · 4 entries

MC1427962: Network best practices for Teams town halls and live events with third‑party providers
Message Center · Prevent or fix issues · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Teams
Assessment context
Microsoft asks admins to prevent or fix an issue
MC1227087: Events in Meet app – Introducing a redesigned, unified Events experience in Microsoft Teams
Notice updated · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Teams
MC1274550: Microsoft Teams: Quick access to read items while using unread only mode
Notice updated · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Teams

Show the other 1 entries

MC1324282: Support for disabling file previews in Microsoft Teams
Notice updated · Microsoft 365 Message Center Archive by Merill Fernando
Microsoft Teams

14 Jul 2026

Message CenterWindows4 source records

Message Center · Stay informed · 4 entries

MC1427603: The July 2026 Windows security update is now available
Message Center · Stay informed · Microsoft 365 Message Center Archive by Merill Fernando
Windows
Assessment context
Microsoft marks it a major change
MC1427604: Enforcement phase for Kerberos RC4 protections begins with the July 2026 Windows security update
Message Center · Plan for change · Microsoft 365 Message Center Archive by Merill Fernando
Windows
Assessment context
Microsoft marks it a major change
MC1427626: Notice: The July 2026 Scan Cab for Microsoft updates is delayed
Message Center · Stay informed · Microsoft 365 Message Center Archive by Merill Fernando
Windows

Show the other 1 entries

MC1427862: The July 2026 Scan Cab is available
Message Center · Stay informed · Microsoft 365 Message Center Archive by Merill Fernando
Windows

14 Jul 2026

ReleasesWindows / Windows Server2 source records

Security release · 2 entries

KB5099535 · Windows 10, version 1607 +1
Security release
Windows 10, version 1607, Windows Server 2016
Assessment context
Monthly security release
KB5099538 · Windows 10, version 1809 +1
Security release
Windows 10, version 1809, Windows Server 2019
Assessment context
Monthly security release

14 Jul 2026

ReleasesWindows Server2 source records

Security release · 2 entries

KB5099536 · Windows Server 2025
Security release
Windows Server 2025
Assessment context
Monthly security release
KB5099540 · Windows Server 2022
Security release
Windows Server 2022
Assessment context
Monthly security release

14 Jul 2026

ReleasesWindows4 source records

Security release · 4 entries

KB5099414 · Windows 11, version 23H2
Security release
Windows 11, version 23H2
Assessment context
Monthly security release
KB5099539 · Windows 10, version 21H2 +1
Security release
Windows 10, version 21H2, Windows 10, version 22H2
Assessment context
Monthly security release
KB5101649 · Windows 11, version 26H1
Security release
Windows 11, version 26H1
Assessment context
Monthly security release

Show the other 1 entries

KB5101650 · Windows 11, version 24H2 +1
Security release
Windows 11, version 24H2, Windows 11, version 25H2
Assessment context
Monthly security release

14 Jul 2026

SecurityActive Directory

Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability

Added to CISA KEV

CVE-2026-56155

Assessment context

CISA lists it as exploited

14 Jul 2026

SecurityCloudflare

WAF - WAF Release - 2026-07-14

Security advisory · Cloudflare WAF changelog

Assessment context

Release notes name CVE-2026-8451, CVE-2026-8037

CVE-2026-8451CVE-2026-8037

14 Jul 2026

SecurityFortinet11 source records

Security advisory · 11 entries

FortiAuthenticator: Out of bounds read in GUI
Security advisory · Fortinet PSIRT advisories
Assessment context
The vendor rates it high
FortiSIEM: Supers override fails to properly override supervisor address
Security advisory · Fortinet PSIRT advisories
Assessment context
The vendor rates it high
FortiSandbox: Unauthenticated VNC access exposed on all interfaces
Security advisory · Fortinet PSIRT advisories
Assessment context
The vendor rates it high

Show the other 8 entries

Missed certificate verification in AD Connector communication with FortiClient EMS
Security advisory · Fortinet PSIRT advisories
Assessment context
The vendor rates it high
FortiOS: Buffer overread in authd and wad daemon
Security advisory · Fortinet PSIRT advisories
FortiOS: Header injection in Web Filter warning page
Security advisory · Fortinet PSIRT advisories
FortiOS: Header injection in captive portal authentication form
Security advisory · Fortinet PSIRT advisories
FortiOS: Path traversal in CLI command allows deletion of root file system
Security advisory · Fortinet PSIRT advisories
FortiOS: SSL-VPN Reflected XSS
Security advisory · Fortinet PSIRT advisories
FortiOS: Stack Buffer Overflow in Log Report
Security advisory · Fortinet PSIRT advisories
FortiSIEM: Cross-Site Scripting in Domain parameter
Security advisory · Fortinet PSIRT advisories

14 Jul 2026

SecurityMicrosoft Security Update Guide

July 2026 Security Updates

MSRC release notes · Microsoft Security Update Guide

Assessment context

Monthly security release notes

14 Jul 2026

SecuritySharePoint

Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability

Added to CISA KEV

CVE-2026-56164

Assessment context

CISA lists it as exploited

14 Jul 2026

CommunityJan Bakker

Passkeys by default and retirement of Microsoft-provided SMS and voice authentication - A guide to stay calm

Community post · Jan Bakker

14 Jul 2026

CommunityOffice 365 for IT Pros (Tony Redmond)

Microsoft to Stop Providing Telephony-Based Authentication Methods for MFA in February 2027

Community post · Office 365 for IT Pros (Tony Redmond)

14 Jul 2026

DatesSQL Server / SharePoint11 source records

Dynamics GP, Project Server, SharePoint Server, SQL Server 2016; Dynamics GP 2016 R2; Infopath 2013; Project Server 2019; SharePoint Designer 2013; SharePoint Server 2019; SQL Server 2014, Extended Security Updates Year 2; Visual Studio 2022 , Version 17.12 (LTSC channel)

14 Jul 2026

DatesSharePoint2 source records

SharePoint Server 2019 and SharePoint Server 2016

End of support

14 Jul 2026

Known issuesCommercial changes2 source records

Partner announcement · 2 entries

Introducing Copilot in 30
Partner announcement · Microsoft Partner Center announcements
Update to benefits renewal window coming
Partner announcement · Microsoft Partner Center announcements

14 Jul 2026

Updates and guidanceAzure

Public Preview: Azure Front Door edge actions

Azure update · Microsoft 365 Message Center Archive by Merill Fernando

14 Jul 2026

Updates and guidanceDefender

Hunting Local AI Tools on macOS with Microsoft Defender for Endpoint

Windows news · Core Infrastructure and Security Blog

14 Jul 2026

Updates and guidanceWindows3 source records

Windows news · 3 entries

Enforcement phase for Kerberos RC4 protections begins with the July 2026 Windows security update
Windows news · Windows message center
The July 2026 Windows security update is now available
Windows news · Windows message center
XBOX, The Coalition and NVIDIA announce a PC partnership for Gears of War: E-Day
Windows news · Windows Experience Blog

14 Jul 2026

Message CenterMicrosoft 365 Copilot

MC1422074: OpenAI models will soon be available as a subprocessor in Microsoft 365 Copilot

Notice updated · Microsoft 365 Message Center Archive by Merill Fernando

Microsoft 365 suite, Microsoft 365 Copilot Chat

14 Jul 2026

Message CenterViva

MC1422058: Measure Copilot sentiment in the Copilot Dashboard with Viva Pulse

Notice updated · Microsoft 365 Message Center Archive by Merill Fernando

Microsoft Viva

14 Jul 2026

Releases.NET4 source records

New version · 4 entries

.NET · .NET 10.0: 10.0.10 (SDK 10.0.302 · security release)
New version · .NET releases
.NET · .NET 11.0: 11.0.0-preview.6 (SDK 11.0.100-preview.6.26359.118)
New version · .NET releases
.NET · .NET 8.0: 8.0.29 (SDK 8.0.423 · security release)
New version · .NET releases

Show the other 1 entries

.NET · .NET 9.0: 9.0.18 (SDK 9.0.316 · security release)
New version · .NET releases

14 Jul 2026

ReleasesExchange2 source records

New version · 2 entries

Exchange Server 2016 · Build: 15.1.2507.71 (CU23 Jul26SU)
New version · Exchange Server 2016 releases
KB5103215
Exchange Server SE · Build: 15.2.2562.45 (RTM Jul26SU)
New version · Exchange Server SE releases
KB5103212

14 Jul 2026

ReleasesMicrosoft 365 Apps2 source records

New version · 2 entries

Microsoft 365 Apps · Office LTSC 2024: Version 2409 (Build 17932.20884)
New version · Microsoft 365 Apps releases
Microsoft 365 Apps · Semi-Annual Enterprise Channel (Preview): Version 2602 (Build 19725.20464)
New version · Microsoft 365 Apps releases

Groups collect records about the same product or named security topic on one UTC date. Open a record for its source and history; grouping alone does not establish a shared cause or impact.