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Windows 11 and Microsoft Edge hacked at Pwn2Own Berlin 2026
Winsage
May 14, 2026

Windows 11 and Microsoft Edge hacked at Pwn2Own Berlin 2026

On the inaugural day of Pwn2Own Berlin 2026, a total of ,000 was awarded to security researchers for exploiting 24 unique zero-day vulnerabilities. Orange Tsai earned ,000 for chaining four logic bugs to achieve a sandbox escape on Microsoft Edge. Windows 11 was targeted by Angelboy, TwinkleStar03, Marcin Wiązowski, and Kentaro Kawane, each earning ,000 for demonstrating new privilege escalation zero-days. Valentina Palmiotti earned ,000 for rooting Red Hat Linux for Workstations and an additional ,000 for a zero-day in the NVIDIA Container Toolkit. Other notable exploits included k3vg3n earning ,000 for taking down LiteLLM, Satoki Tsuji and haehae earning ,000 for exploiting NVIDIA Megatron Bridge zero-days, Compass Security and maitai earning ,000 each for hacking OpenAI's Codex, haehae earning ,000 for a Chroma zero-day, and STARLabs SG earning ,000 for exploiting a LM Studio zero-day. The DEVCORE Research Team leads the competition with ,000 in earnings, followed by Valentina Palmiotti with ,000. The contest is held at the OffensiveCon conference from May 14 to May 16, with over ,000,000 in cash and prizes available. Participants must target fully patched products and demonstrate arbitrary code execution. Vendors have a 90-day window to release security fixes after zero-day flaws are disclosed. Last year, the TrendMicro Zero Day Initiative awarded ,078,750 for 29 zero-day vulnerabilities.
Windows 11 26H1: Microsoft keeps the special branch on track for new hardware
Winsage
May 14, 2026

Windows 11 26H1: Microsoft keeps the special branch on track for new hardware

Microsoft has released an update to Windows 11 version 26H1, OS Build 28000.2113, through cumulative update KB5089548 on May 12, 2026. This update includes essential security fixes and non-security enhancements from the previous month's optional preview. Windows 11 version 26H1 is specifically designed for new devices launching in early 2026 and will not be available as an in-place update for existing systems running versions 24H2 or 25H2. The update focuses on maintenance for this branch, with improvements in SSDP notifications and gaming compatibility. It also includes AI enhancements exclusive to Copilot+-enabled PCs. Microsoft continues to support versions 24H2 and 25H2 for enterprise deployments, while 26H1 is relevant only for new hardware platforms. Currently, there are no known issues reported for Windows 11 26H1 or update KB5089548.
Windows 11 security update fixes critical Bing and Azure flaws
Winsage
May 13, 2026

Windows 11 security update fixes critical Bing and Azure flaws

Microsoft released its May 2026 Patch Tuesday updates for Windows 11, addressing 97 security vulnerabilities across various components, including Windows, Microsoft Office, Azure services, SQL Server, SharePoint, Hyper-V, and .NET. The updates are encapsulated in KB5089549 for Windows 11 versions 24H2 and 25H2, elevating systems to builds 26100.8457 and 26200.8457. Notable vulnerabilities include CVE-2026-32169, a critical flaw in Azure Cloud Shell with a CVSS score of 10.0, and CVE-2026-21536, a critical remote code execution vulnerability in the Microsoft Devices Pricing Program with a CVSS score of 9.8. Other critical vulnerabilities include CVE-2026-32191 and CVE-2026-32194, impacting Microsoft Bing Images, both with CVSS scores of 9.8. The update also addresses multiple Windows privilege escalation vulnerabilities and remote code execution vulnerabilities in Microsoft Office and Excel. Microsoft has warned of upcoming Secure Boot certificate expirations starting in June 2026 and has improved boot reliability related to BitLocker recovery issues. Users can install the updates via Settings → Windows Update, with a system restart required.
Security updates Windows no longer require frequent reboots
Winsage
May 6, 2026

Security updates Windows no longer require frequent reboots

Since early May 2026, a U.S. company has introduced Hotpatching technology for compatible devices, allowing security updates to be applied without a full system reboot. This technology replaces code fragments directly in the RAM of running processes, reducing the size of downloaded packages and enabling quicker implementation of critical patches. The update mechanism operates on a hybrid schedule with four base months requiring mandatory reboots for cumulative changes and eight hotpatching months focusing on in-memory security fixes. If extensive architectural changes are needed or if the software environment does not meet standards, the system defaults to a standard installation algorithm that requires a reboot. The technology is designed for corporate infrastructures with high operational demands and requires Windows 11 version 24H2 or later, specific editions, and enabled VBS virtualization protection.
Microsoft enables Hotpatching by default: Windows updates without restarts become a reality
Winsage
May 6, 2026

Microsoft enables Hotpatching by default: Windows updates without restarts become a reality

Beginning in May 2026, Microsoft will introduce Hotpatching as a default feature for compatible systems, allowing security updates to be applied without requiring a restart. Hotpatching updates code directly in the memory of running processes, enabling selective updates without interrupting the entire system. It does not replace monthly security updates but alters their activation process on eligible systems, categorized as security updates within the monthly B releases. Eligible systems must be running Windows 11 version 24H2 or newer and possess suitable licenses such as Enterprise, Education, Microsoft 365, or Windows 365. Management of these updates will be facilitated through Windows Autopatch or Microsoft Intune. Microsoft will continue to utilize baseline updates that require a restart, which will alternate with Hotpatch months. Hotpatching aims to reduce the frequency of restarts tied to security updates, particularly benefiting environments where uptime is critical. However, planned restarts will still be necessary, and robust telemetry and maintenance practices will be needed to ensure smooth operation.
You shouldn't delay your Windows 11 updates, experts reveal
Winsage
May 3, 2026

You shouldn’t delay your Windows 11 updates, experts reveal

Experts advise against postponing Windows updates, as Microsoft has introduced features allowing users to control when updates occur. Users can pause updates for up to 35 days indefinitely, but delaying updates can lead to security vulnerabilities. Microsoft releases several types of updates: security updates, feature updates, quality updates, driver updates, optional updates, out-of-band updates, and zero-day updates. Zero-day updates are critical and should be installed immediately to avoid exploitation. Recent reports indicate that critical OS patching for Windows 10 and 11 is lagging by an average of 256 days, increasing the risk of cyber incidents.
“Xbox mode is easily the headline feature”: In May’s Windows 11 update, I walk through the 11 upgrades that change how we use the OS, and why some of them surprised me
Winsage
May 2, 2026

“Xbox mode is easily the headline feature”: In May’s Windows 11 update, I walk through the 11 upgrades that change how we use the OS, and why some of them surprised me

Microsoft will begin rolling out the May 2026 Security Update for Windows 11 on May 12, 2026. Key features of this update include: 1. Xbox Mode: Transforms PCs into a console-like experience, prioritizing system resources for gaming and freeing up to 2GB of memory. 2. Voice Typing Improvements: Redesign of Voice Typing elements on the touch keyboard. 3. New Arabic 101 Legacy Keyboard Layout: Available for addition from the Region page in Settings. 4. Drop Tray Changes: Renamed from Drag Tray and can be disabled in Settings > System > Multitasking. 5. Taskbar AI Agents Support: Allows monitoring of AI agents directly from the Taskbar, starting with the Microsoft 365 Copilot app. 6. Debloat Policy with Dynamic List Support: Enables administrators to specify additional apps for removal beyond the default list. 7. Windows Driver Policy Update: Changes how the kernel manages trust for third-party drivers, eliminating default trust for cross-signed drivers. 8. Batch File Security Changes: Enhances security for batch files and Command Prompt scripts, with an option for a hardened processing mode. 9. Format FAT32 up to 2TB: The format command-line tool now supports formatting volumes up to 2TB using FAT32.
Microsoft updates the Windows Update Experience: You can hit pause now
Winsage
April 27, 2026

Microsoft updates the Windows Update Experience: You can hit pause now

Microsoft has introduced a new feature allowing users to pause Windows Updates indefinitely, responding to user feedback. Users can select a specific date for the update pause to end and extend it for up to 35 days. This feature aims to address concerns about disruptions during critical moments, such as important presentations. Microsoft emphasizes the importance of timely updates for security and has previously allowed users to skip updates during initial device setup, though this does not apply to managed devices. Additionally, the Restart and Shut Down options will remain visible in the Power menu even when updates are pending.
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