microsoft update catalog

  1. Windows 10 September 2025 KB5065429: End of Support Looms, ESU Bridge

    Microsoft's September cumulative — KB5065429 — is rolling out now, and for millions of Windows 10 users it is both a final security lifeline and a practical checkpoint as the operating system heads to its scheduled end of support on October 14, 2025. Background / Overview Windows 10’s...
  2. Windows 11 KB5065426 Patch Tuesday: Copilot+ on-device AI, UI polish, and privacy controls

    Microsoft’s September Patch Tuesday brings a substantial, feature‑heavy cumulative update to Windows 11—KB5065426—delivering a mix of visible UI polish, staged Copilot+ AI capabilities, privacy controls for on‑device generative features, and a set of bug and security fixes that administrators...
  3. CVE-2025-54099: Windows AFD.sys Stack Overflow Privilege Escalation Explained

    Microsoft’s advisory identifies a vulnerability in the Windows Ancillary Function Driver for WinSock (afd.sys) that can be triggered locally to escalate privileges — described on the vendor page as a buffer overflow in the WinSock ancillary driver — and administrators must treat this as a...
  4. Windows 11 24H2: Setup and Safe-OS Dynamic Update for 2025

    Microsoft quietly published two targeted Dynamic Update packages for Windows 11, version 24H2 (and Windows Server 2025) — KB5065378 (a Setup Dynamic Update) and KB5064097 (a Safe OS / WinRE Dynamic Update) — on August 29, 2025, delivering refreshed setup binaries and a new Windows Recovery...
  5. Microsoft Issues OOB Fix for Windows Reset/Recovery After August 2025 Patch Tuesday

    Microsoft has issued an emergency out‑of‑band update to repair a high‑impact regression introduced by the August Patch Tuesday rollup that left Windows’ built‑in reset and recovery tools unable to complete on many client devices. id‑August Microsoft shipped its regular Patch Tuesday cumulative...
  6. Windows 11 KB5063878 0x80240069: KIR Mitigation for WSUS/SCCM

    Microsoft has acknowledged an emergency problem with the August 12, 2025 cumulative update for Windows 11 (KB5063878), after enterprise administrators reported widespread installation failures when the package is delivered through Windows Server Update Services (WSUS) and System Center...
  7. Windows 11 24H2 install media bug: fix with December 2024 update media

    Microsoft has quietly pushed an emergency mitigation and updated guidance after a late‑2024 Windows 11 installation‑media bug left some freshly installed systems unable to accept subsequent security updates, forcing affected users and IT teams into painful workarounds including media rebuilds...
  8. Windows 11 KB5063878 WSUS/SCCM Failure: 0x80240069 Fix Guide

    Microsoft has confirmed that the August 12, 2025 cumulative update for Windows 11, KB5063878 (OS Build 26100.4946), can fail to install on enterprise endpoints when delivered via Windows Server Update Services (WSUS) or System Center Configuration Manager (SCCM/MECM), producing the error code...
  9. Windows 11 Aug KB5063878 Fails on WSUS/SCCM: KIR and Quick Workarounds

    Microsoft’s August cumulative update for Windows 11 (KB5063878) is failing to install on a subset of systems—most notably enterprise devices serviced through WSUS and ConfigMgr—and administrators are being given a short list of containment options that trade speed for scope and safety. view The...
  10. Windows 11 KB5063878 0x80240069: WSUS/SCCM Failures and Quick Mitigations

    Microsoft has confirmed that the Windows 11 August 2025 cumulative update (KB5063878) is causing installation failures in certain enterprise scenarios and has pushed an emergency mitigation while engineers work on a permanent fix. The issue surfaces as error code 0x80240069 when updates are...
  11. CVE-2025-48807: Patch Hyper-V Local Code Execution via VSP Channels

    Windows Hyper‑V contains a vulnerability tracked as CVE‑2025‑48807 that, according to the vendor advisory, stems from improper restriction of a Hyper‑V communication channel to its intended endpoints and can be abused by an authorized attacker to execute code locally on an affected host. This...
  12. CVE-2025-50155: Local Privilege Escalation in Windows Push Notifications (Type Confusion)

    Microsoft’s Security Response Center (MSRC) has cataloged CVE-2025-50155 as an Elevation of Privilege (EoP) vulnerability in the Windows Push Notifications Apps component described as “Access of resource using incompatible type (‘type confusion’).” The issue allows an authorized local attacker —...
  13. CVE-2025-53734: Visio Use-After-Free RCE - Patch Now to Prevent Exploitation

    Microsoft has confirmed a use‑after‑free vulnerability in Microsoft Office Visio — tracked as CVE‑2025‑53734 — that can be triggered when a user opens a specially crafted Visio file and may allow an attacker to execute code in the context of the current user; Microsoft’s advisory entry is live...
  14. KB5063875: Aug 2025 Windows 11 LCU+SSU for 22H2/23H2 with Secure Boot

    Microsoft has published the August 12, 2025 cumulative security update for older Windows 11 branches — KB5063875, which updates OS Builds 22621.5768 and 22631.5768 — delivering a combined Latest Cumulative Update (LCU) and Servicing Stack Update (SSU) for devices still on Windows 11 versions...
  15. Mitigating Windows Hyper-V Heap Overflow (CVE-2025-53155)

    A heap‑based buffer overflow in Windows Hyper‑V allows a locally authorized attacker to elevate privileges on an affected host — administrators must treat this as a high‑priority patching and hardening task and verify vendor guidance before rolling changes into production. Background Windows...
  16. Windows 11 August 2025 24H2 Update: QMR, AI Settings, Black BSOD, Offline MSU

    Microsoft’s August 2025 cumulative rollup for Windows 11 (24H2) is landing as a mandatory Patch Tuesday release that promises measurable stability and gaming performance fixes, a new Quick Machine Recovery capability, an AI-assisted Settings search (gated to Copilot+ hardware)...
  17. Windows 11 KB5062660 Update Fixes Firewall Errors & Boosts Performance

    Here is a summary of the KB5062660 Windows 11 update, based on official Microsoft changelogs and user reports: What was fixed regarding Windows Firewall? Issue: Users were getting repeated warnings and errors in the Event Viewer flagged as Event 2042 — "Config Read Failed" with the message...
  18. Windows 11 KB5062660 Update Introduces Black Screen of Death & Enhances PC Features

    Here are the main takeaways from the PCWorld article you shared regarding the latest Windows 11 update (KB5062660): Blue Screen of Death (BSOD) Replaced by Black Screen of Death The iconic “Blue Screen of Death” (BSOD) is now officially replaced by a “Black Screen of Death.” The acronym “BSOD”...
  19. Microsoft’s July Dynamic Updates Drive Windows 11 & Server 2025 Reliability and Deployment Enhancements

    The latest wave of dynamic updates from Microsoft signals a subtle yet consequential shift in how the software giant shapes the future of the Windows ecosystem, particularly for those adopting Windows 11 and the imminent Windows Server 2025. Benefitting both enterprise administrators and...
  20. Microsoft Releases Critical Out-of-Band Update KB5064489 for Windows 11 24H2

    Microsoft has released an out-of-band (OOB) update, KB5064489, for Windows 11 version 24H2, addressing a critical issue that prevented certain Azure Virtual Machines (VMs) from booting when Virtualization-Based Security (VBS) was enabled. This problem primarily affected non-Trusted Launch...