CVE-2026-83498: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
Other sources
Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2954Patch KB5124012 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9445Patch KB5124008 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9445Patch KB5124008 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7582Patch KB5122880
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Systems running Microsoft Windows 11 or Microsoft Windows Server 2025 are listed as affected. Exploitation is local, so the attacker must already be able to execute in an authorized context on the system.
What level of access does an attacker need to exploit it?
The attacker needs local access and low privileges. No user interaction is required, and successful exploitation can result in elevated privileges.
What security impact could successful exploitation have?
The supplied severity vector indicates high impact to confidentiality, integrity, and availability. An attacker who exploits the issue could elevate privileges locally.