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How the CVE Works
CVE-2025-47999 exploits a missing synchronization flaw in Windows Hyper-V, allowing an adjacent-network attacker to trigger a denial of service (DoS) condition. The vulnerability stems from improper handling of virtual machine resource allocation, where race conditions in memory management operations can be abused to crash the hypervisor. Attackers send specially crafted network packets to a Hyper-V host, causing a deadlock or infinite loop in the virtualization layer, leading to system instability.
DailyCVE Form
Platform: Windows Hyper-V
Version: Pre-11.0.22000
Vulnerability: DoS via sync flaw
Severity: Critical
Date: 07/15/2025
Prediction: Patch by 08/10/2025
What Undercode Say
Check Hyper-V version Get-WindowsFeature -Name Hyper-V Monitor Hyper-V logs Get-EventLog -LogName "Microsoft-Windows-Hyper-V-Compute-Admin"
How Exploit
1. Craft malicious network packets targeting Hyper-V host.
2. Exploit race condition in VM memory management.
3. Trigger hypervisor crash via deadlock.
Protection from this CVE
- Apply Microsoft’s pending patch.
- Isolate Hyper-V management networks.
- Enable strict VM resource quotas.
Impact
- Hyper-V host instability.
- VM downtime.
- Adjacent-network exploitation.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
