Microsoft Windows Hyper-V Integer Underflow Vulnerability Leading to Denial-of-Service

A denial-of-service vulnerability has been identified in Windows Hyper-V. This issue arises from an integer underflow, allowing an authorized attacker to disrupt services over the network. The vulnerability affects multiple Windows products, including Windows Server 2012 R2, Windows Server 2016, Windows 10 Version 1607, Windows Server 2025, Windows 11 Version 24H2, Windows Server 2022, and Windows Server 2019.

Impact

Exploitation of this vulnerability causes a significant denial-of-service condition, disrupting normal service operations and causing a high impact on availability.

Remediation

Users can download the security update for this vulnerability through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5071503, KB5071543, KB5072033, KB5071417, KB5071546, KB5071544, KB5071547, and KB5071413.