CVE-2026-73010: Microsoft Failover Cluster Remote Code Execution Vulnerability
Published Sep 8, 2026
·Updated
Microsoft Failover Cluster Remote Code Execution Vulnerability
Other sources
Use after free in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.
— Microsoft
Affected Software
13 affected componentsFixes available
Microsoft Windows Server 2019<10.0.17763.9245
10.0.17763.9245
Microsoft Windows 10=1809
10.0.17763.9245
Microsoft Windows Server 2025<10.0.26100.33438
10.0.26100.33438
Microsoft Windows Server 2025<10.0.26100.33438
10.0.26100.33438
Microsoft Windows 10=1809
10.0.17763.9245
Microsoft Windows Server 2019<10.0.17763.9245
10.0.17763.9245
Microsoft Windows Server 2022<10.0.20348.5622
10.0.20348.5622
Microsoft Windows Server 2022<10.0.20348.5622
10.0.20348.5622
Microsoft Windows 10 1809<10.0.17763.9245
Microsoft Windows 10 1809<10.0.17763.9245
Microsoft Windows Server 2019<10.0.17763.9245
Microsoft Windows Server 2022<10.0.20348.5622
Microsoft Windows Server 2025<10.0.26100.33438
Remediation
Event History
Sep 8, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·05:18 PM
Data Sourced
via MITRE·05:18 PM
DescriptionSeverity
Data Sourced
via NVD·06:20 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
Which systems are in scope based on the listed affected software?
The listed affected software includes Microsoft Windows 10 and Microsoft Windows Server 2019, Windows Server 2022, and Windows Server 2025. The vulnerability is in Windows Failover Cluster.
2
Does exploitation require authentication, user interaction, or local access?
No. The vector indicates network exploitation with low attack complexity, no privileges required, and no user interaction required.
3
What level of impact could successful exploitation have?
Successful exploitation could allow remote code execution. The provided metrics indicate high impact to confidentiality, integrity, and availability.