Mmastodon TechnologyCybersecurity first seen 3 d ago, last 3 d ago, peak #2

Microsoft patches high-severity heap overflow in Windows driver

Original: 🚨 EUVD-2026-99172 📊 Score: 7.8/10 (CVSS v3.1) 📦 Product: Windows Server 2016 (Server Core installation), Windows Server

A new vulnerability, EUVD-2026-99172, has been catalogued affecting Microsoft Windows, including Windows Server 2016, Windows Server 2022 and Windows 11 24H2, among other versions. The flaw is a heap-based buffer overflow in the Windows Portable Device File System Driver, scored 7.8 out of 10 under CVSS v3.1. The advisory was updated on 13 October 2026, and system administrators are expected to review patching guidance for affected deployments.

Why now: Security teams are tracking a newly published high-severity Windows vulnerability that could affect a wide range of Microsoft systems.

MicrosoftWindows Server 2016Windows Server 2022Windows 11 24H2ENISA EUVD

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Evidence

• 🚨 EUVD-2026-99172 📊 Score: 7.8/10 (CVSS v3.1) 📦 Product: Windows Server 2016 (Server Core installation), Windows Server 2022, Windows 11 Version 24H2 (+17 more) 🏢 Vendor: Microsoft 📅 Updated: 2026-10-13 📝 Heap-based buffer overflow in Windows Portable Device File System Driver… · EUVD_Bot

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