CVE-2026-73010 – Microsoft Failover Cluster Remote Code Execution Vulnerability

CVSS 9.8 CRITICAL Critical - Same Day Deployment

“A single malicious network packet could give an unauthenticated attacker the ability to run code on a vulnerable system.”

CVE-2026-73010 is a critical use-after-free vulnerability in Microsoft Windows Failover Cluster. An unauthorized remote attacker can send a specially crafted packet to an affected service and potentially execute code on the target system. Exploitation requires no authentication, privileges, or user interaction.

Key Details

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
CWE Classification
CWE-416
Patch this CVE on all your endpoints in under 5 minutes. First 200 endpoints are free forever, scale as needed.