Mmastodon TechnologyCybersecurity first seen 3 d ago, last 3 d ago, peak #10

New Hyper-V vulnerability hits Windows Server versions

Original: 🚨 EUVD-2026-73017 📊 Score: 7.1/10 (CVSS v3.1) 📦 Product: Windows Server 2019, Windows Server 2025, Windows Server 2022 (

Microsoft's Windows Hyper-V has a missing-authorization flaw, tracked as EUVD-2026-73017, with a CVSS score of 7.1. It affects Windows Server 2019, 2022 and 2025, among other versions, and could allow an authorized attacker to elevate privileges. The advisory was published on 8 September 2026 and updated on 7 October 2026.

Why now: Security teams are tracking a newly updated vulnerability advisory affecting widely used Windows Server products.

MicrosoftWindows Hyper-VWindows Server 2019Windows Server 2022Windows Server 2025

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Evidence

• 🚨 EUVD-2026-73017 📊 Score: 7.1/10 (CVSS v3.1) 📦 Product: Windows Server 2019, Windows Server 2025, Windows Server 2022 (+9 more) 🏢 Vendor: Microsoft 📅 Published: 2026-09-08 | Updated: 2026-10-07 📝 Missing authorization in Windows Hyper-V allows an authorized attacker to elevate… · EUVD_Bot

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