hyper-v

Microsoft has recorded a new kernel‑level vulnerability, CVE‑2025‑59516, in the Windows Storage Virtualization Service Provider (VSP) driver that can allow a local, authorized attacker to escalate privileges on affected hosts by invoking a missing authentication path in the driver—Microsoft’s...

Microsoft’s Hyper‑V work for the Linux kernel landed a substantial set of features and cleanups in the Linux 6.19 cycle, expanding what Linux can do both as a guest on Hyper‑V and as a root partition for Microsoft’s hypervisor stack — and bringing confidential‑computing, crash collection, and...

When a Linux virtual machine runs on Microsoft Hyper‑V, the hyperv_fb framebuffer driver provides the synthetic display surface that makes console output and early-boot graphics available to the host and guest; a recent kernel fix for CVE-2025-21976 changes how that driver tears down its...

Microsoft quietly shipped an optional, non‑security preview cumulative — KB5067112 — to the Release Preview channel for Windows 11, version 23H2, delivering a narrowly scoped set of reliability fixes (touch‑keyboard input after resume, a Hyper‑V external virtual‑switch NIC binding regression...

Microsoft has confirmed a denial‑of‑service flaw in the Storvsp.sys storage Virtualization Service Provider (VSP) driver — tracked as CVE‑2025‑60708 — that allows a locally authorized attacker to trigger a kernel‑mode crash by exploiting an untrusted pointer dereference in the driver, and...

A small but consequential race-condition fix landed in the Linux kernel in late October 2025: uio_hv_generic has been changed to stop touching the interrupt mask and instead let userspace control it, closing a hang‑causing race that could leave guest UIO consumers permanently waiting for...

Hyper‑V is not included in Windows Home editions by default, but the underlying hypervisor components already exist in the OS image and can be unlocked with a careful, unsupported manual process that uses DISM to install built‑in packages — this step‑by‑step feature explains what to check, how...

Microsoft has released an optional, non‑security preview cumulative for Windows 11, version 23H2 — KB5067112 (Build 22631.6132) — to the Release Preview channel, delivering a compact set of reliability fixes and a controlled enablement of the new Personalized Offers experience during Out‑of‑Box...

Microsoft has pushed a focused Release Preview update for Windows 11, version 23H2 — delivered as KB5067112 and tied to the OS build families used by Microsoft’s servicing branches — that addresses a handful of sharp reliability regressions (notably a touch‑keyboard sign‑in failure and a Hyper‑V...

A new Windows Hyper‑V vulnerability tracked as CVE‑2025‑55328 has been published by Microsoft and classified as an Elevation of Privilege issue caused by a race condition in the Hyper‑V code path. The vendor summary describes the flaw as “concurrent execution using shared resource with improper...

When you unbox a new Windows PC the label that matters most is often the one you don’t read: the edition. At first glance Windows 11 Home and Windows 11 Pro look identical — same centered Start menu, Snap Layouts, Widgets and gaming features — but the two editions diverge sharply once you peel...

Microsoft released a targeted hotpatch—KB5065474—on September 9, 2025, for Windows 11 Enterprise (24H2 / LTSC 2024) that advances eligible devices to OS Build 26100.6508, delivers a focused app-compatibility / UAC repair, and includes two operational advisories administrators must treat as high...

RiverMeadow’s announcement that its Workload Mobility Platform now supports Microsoft Azure Local marks a notable development for enterprises weighing VMware alternatives and planning large-scale cloud migrations. The vendor’s pitch—faster migrations, hybrid on‑premises + Azure management...

Microsoft released a targeted hotpatch on September 9, 2025 — KB5065474 — for Windows 11 Enterprise (version 24H2 / LTSC 2024) that advances eligible machines to OS Build 26100.6508, delivers a focused app-compatibility/UAC fix, bundles a servicing stack update (SSU), and warns administrators...

Microsoft has released KB5066360, a targeted hotpatch for Windows PowerShell that addresses PowerShell Direct (PSDirect) connectivity failures and a narrow host‑to‑guest exposure introduced by the September 2025 security/hotpatch cycle; the package updates PowerShell assemblies to OS Build...

Microsoft released a September 9, 2025 hotpatch—KB5065474—for Windows 11 Enterprise LTSC 2024 that advances hotpatch coverage to a new OS build (26100.6508), addresses a notable UAC/MSI compatibility issue, and includes a known‑issue advisory that affects PowerShell Direct (PSDirect)...

Microsoft has released KB5066360, a targeted hotpatch for Windows PowerShell that corrects an interoperability and security regression affecting PowerShell Direct (PSDirect) when host and guest virtual machines are unevenly patched; the update is a no-restart hotpatch for eligible systems and...

Microsoft’s September Patch Tuesday delivered a broad, operationally important set of security updates on September 9, 2025, covering Windows, Microsoft Office, SQL Server and related platform components — with industry trackers reporting roughly 80–86 CVEs patched and several high‑priority...

Enable and Use Windows Sandbox for Safe App Testing on Windows 10/11 Difficulty: Intermediate | Time Required: 20 minutes Introduction Windows Sandbox is a lightweight, disposable virtual environment built into Windows that lets you run untrusted apps safely — without risking your main system...

Microsoft’s September Patch Tuesday delivers a heavy, operationally urgent security package: more than 80 CVEs across Windows, Office, Hyper‑V, Azure components and developer libraries, including eight items Microsoft rates critical and two vulnerabilities that were publicly disclosed before the...