Articles from February 2026
Browse all Windows news articles published in February 2026
CVE-2026-21247 Hyper-V Vulnerability: Patch Playbook and Defenses
Microsoft’s own vulnerability listing shows an entry for CVE-2026-21247 tied to Windows Hyper‑V, but the public advisory contains little low‑level detail and renders via a dynamic web application that
Urgent Patch Guidance for CVE-2026-21248 Hyper-V RCE
Microsoft's security guidance for CVE-2026-21248 warns Windows administrators that a serious Remote Code Execution (RCE) vulnerability exists in Hy
CVE-2026-21260 Outlook Spoofing: Install All Applicable Updates Now
Microsoft has published guidance on CVE-2026-21260 — a Microsoft Outlook spoofing vulnerability — and the message for administrators is unambiguous
CVE-2026-21258: Excel Information Disclosure and Patch Guidance
Microsoft’s security tracking lists CVE-2026-21258 as an Excel information‑disclosure vulnerability, but the public record remains intentionally terse: the vendor entry confirms a vulnerability exists
CVE-2026-21519: Analyzing the DWM Vulnerability & MSRC Confidence Scoring
Microsoft’s Security Update Guide shows a Desktop Window Manager (DWM) vulnerability identified as CVE‑2026‑21519, but the public technical details for that specific identifier are limited at the time
CVE-2025-62453: Critical Security Flaw in GitHub Copilot for VS Code Exposed
Microsoft and GitHub’s Copilot integrations with Visual Studio Code have been the focus of a fresh round of security scrutiny after vendor advisories and independent trackers documented a security fea
CVE-2026-21259: Critical Excel Heap Overflow Vulnerability Demands Immediate Action
Microsoft’s Security Response Center has registered CVE-2026-21259 as a heap‑based buffer overflow in Microsoft Excel that can be turned into a local elevation‑of‑privilege (EoP) condition — a serious
Microsoft Patches Critical XSS Vulnerability in Azure DevOps Server (CVE-2026-21512)
Microsoft has assigned CVE‑2026‑21512 to a cross‑site scripting (XSS) vulnerability affecting Azure DevOps Server, and while the vendor entry confirms the issue exists, public technical details remain
CVE-2026-21517: Critical Windows App Installer EoP Vulnerability Explained
Microsoft’s advisory for CVE-2026-21517 confirms a local Elevation of Privilege (EoP) vulnerability in the Windows App (macOS-targeted) installer components that can allow a low‑privilege user or proc
Windows 11 KB5077374 Setup Dynamic Update: Essential Guide for IT Administrators
Microsoft published a Setup Dynamic Update for Windows 11, version 23H2 (KB5077374) on February 10, 2026; the short public summary confirms the packa
Microsoft's Phi Silica 1.2511.1196.0 Update: What It Means for Copilot+ on AMD PCs
Microsoft has quietly pushed a targeted Phi Silica AI component refresh for Copilot+ PCs with AMD silicon — a model-package update that installs Phi Silica version 1.2511.1196.0 via Windows Update and
KB5077181: Windows 11 February 2026 Update Brings AI Features & Security Fixes
Microsoft released KB5077181 on Patch Tuesday (February 10, 2026), a cumulative security-and-quality rollup for Windows 11 that advances the 25H2 and 24H2 servicing lines to OS Builds 26200.7840 and 2