hyper-v

  1. Urgent: Patch CVE-2025-49707 in Azure VMs (Local Spoofing)

    Title: Urgent: CVE-2025-49707 — Azure Virtual Machines Improper Access Control Allows Local Spoofing (What IT Teams Must Do Now) Summary Microsoft has published guidance for CVE-2025-49707: an improper access-control vulnerability in Azure Virtual Machines that allows an authorized attacker to...
  2. 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...
  3. CVE-2025-53723: Numeric Truncation in Hyper-V Elevates Privilege

    Microsoft has published an advisory for CVE-2025-53723: a numeric truncation error in Windows Hyper‑V that Microsoft classifies as an Elevation of Privilege (EoP) vulnerability; the vendor states an authorized local attacker can exploit the flaw to escalate privileges on affected hosts...
  4. 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. (msrc.microsoft.com)...
  5. CVE-2025-50172 DirectX Kernel DoS: Unbounded Resource Allocation

    Microsoft has published an advisory for CVE-2025-50172: a vulnerability in the DirectX Graphics Kernel that permits authorized attackers to cause a denial‑of‑service (DoS) by allocating graphics resources without limits or throttling, potentially disrupting hosts and virtualized workloads that...
  6. CVE-2025-50167: Hyper-V Race Condition Elevates Privilege (Patch Now)

    Microsoft’s advisory for CVE‑2025‑50167 warns that a race condition in Windows Hyper‑V can be abused by an authorized local attacker to elevate privileges on affected hosts — a kernel‑level flaw that demands immediate attention from administrators, cloud operators, and anyone running Hyper‑V...
  7. CVE-2025-47999: Hyper-V DoS Patch Guidance for Adjacent Attacks

    Microsoft’s advisory language and third‑party tracking show that the widely reported Hyper‑V flaw you referenced is cataloged as CVE‑2025‑47999, not CVE‑2025‑49751 — the difference appears to be a typo — and it describes a missing synchronization bug in Windows Hyper‑V that can be weaponized by...
  8. Linux vs Windows for Homelabs: A Practical OS Guide

    The debate over Windows vs. Linux for your homelab is tired but relevant: for most home lab builders, Linux is the pragmatic default, while Windows remains valuable for specific, compatibility-driven roles. This article synthesizes the common arguments, verifies the major technical claims...
  9. Archive Windows 10 22H2 ISO Before End of Support (Oct 14, 2025)

    Windows 10’s long goodbye is nearly here, and the smartest move you can make before support ends on October 14, 2025 is to download and archive a clean, unmodified Windows 10 Version 22H2 ISO directly from Microsoft. Whether you plan to keep older PCs running, want a recovery option if a drive...
  10. Windows Server 2025: Key Enhancements, Migration Strategies, and Future-Proofing

    Nine months have passed since Microsoft released Windows Server 2025, marking a significant milestone for one of the most widely used server operating systems in the world. Since its launch on November 4, 2024, Windows Server 2025 has undergone focused scrutiny from industry professionals...
  11. Exploring Windows Virtualization: Nesting OS Layers and Pushing Boundaries

    Pushing the boundaries of operating system flexibility has long been a point of pride for Windows enthusiasts. Over decades, Microsoft’s desktop platform has earned a reputation for not only powering modern hardware and productivity workloads but also for its backwards compatibility and...
  12. Unlocking Windows Sandbox: The Ultimate Guide to Secure, Fast, and Ephemeral Testing

    Windows Sandbox remains one of the most underrated features in the Microsoft ecosystem, quietly offering tremendous utility to power users, developers, security-conscious individuals, and IT professionals alike. Introduced by Microsoft in 2019, Windows Sandbox provides a lightweight, disposable...
  13. Mastering Hyper-V in Windows Server Virtual Machines: Troubleshooting, Solutions & Best Practices

    When attempting to install Hyper-V within a Windows Server virtual machine, many IT professionals encounter persistent errors that can derail testing, nested virtualization strategies, or entire hybrid infrastructure plans. As more organizations adopt layered virtualization—running Hyper-V...
  14. Microsoft Releases Urgent Windows 11 Patch to Fix Critical VBS Boot Failure in Azure VMs

    In an unexpected but crucial turn of events for IT administrators and cloud users worldwide, Microsoft has issued an urgent out-of-band update to patch a critical bug in Windows 11 version 24H2 that disrupted Azure Virtual Machine (VM) startup when Virtualization-Based Security (VBS) was...
  15. Virtualisation in Modern IT: Strategies, Platforms, and Business Impact

    Virtualisation has evolved from a niche IT solution to a foundational technology powering everything from enterprise data centers to agile cloud-native development across global corporations like Telefónica. Virtualisation solutions provide the vital ability to carve a single piece of hardware...
  16. July 2025 Windows Security Patch Cycle: 130 Fixes & Windows 11 Surpasses Windows 10

    Microsoft’s monthly Patch Tuesday has long served as the industry’s pulse check on the security resilience of the Windows ecosystem. In July 2025, this tradition continues with a surprisingly robust update cycle, as Microsoft rolled out fixes for 130 distinct vulnerabilities spanning Windows...
  17. Azure Linux 3.0.20250702 Update Boosts Security, Performance & ARM64 Support

    Microsoft has released Azure Linux 3.0.20250702, the latest monthly update to its in-house Linux distribution utilized both internally and by external partners. This July 2025 update introduces a series of security enhancements, feature additions, and performance improvements, underscoring...
  18. July 2025 Patch Tuesday: Critical Security Updates, Zero-Day Flaw in SQL Server & Windows Vulnerabilities

    Microsoft’s July 2025 Patch Tuesday lands with considerable urgency, carrying updates that address a staggering 137 distinct flaws across its ecosystem, including one publicly disclosed zero-day in Microsoft SQL Server. With business, government, and individual users heavily dependent on...
  19. CVE-2025-47999: Windows Hyper-V Vulnerability Causes Denial of Service

    CVE-2025-47999 describes a Windows Hyper-V Denial of Service (DoS) vulnerability. The vulnerability arises from missing synchronization in Hyper-V, which allows an authorized attacker to cause a denial of service (crash or unavailability of service) over an adjacent network. This means that the...
  20. Critical Hyper-V Vulnerability CVE-2025-48822: Protect Your Virtualized Environment

    In the ever-evolving landscape of cybersecurity, vulnerabilities within virtualization platforms like Microsoft's Hyper-V pose significant risks to enterprise environments. A recent disclosure, identified as CVE-2025-48822, highlights a critical flaw in Hyper-V's Discrete Device Assignment (DDA)...