Uncaught Exception in Windows Server - CVE-2026-96945
Published: October 14, 2026
Vulnerability identifier: #VU155533
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-96945
CWE-ID: CWE-248
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to an uncaught exception in Windows Failover Cluster when handling network traffic. A remote attacker can trigger the exception over the network to cause a denial of service.
Affected software
Windows Server
How to mitigate CVE-2026-96945
Install security update from vendor's website.
Windows Server - addressed in versions 2019 10.0.17763.9376, 2022 10.0.20348.5761, 2025 10.0.26100.33650