CVE-2026-83501: Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability
Out-of-bounds read in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to disclose information locally.
Other sources
Windows Virtualization-Based Security (VBS) Information Disclosure 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 10.0.28000.2954Patch KB5124012 - 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 10.0.26200.9445Patch KB5124008 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7582Patch KB5122880 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9445Patch KB5124008
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must already be authorized on the affected system and able to act locally. The issue is not described as remotely exploitable or requiring user interaction.
What is the potential impact?
Successful exploitation can disclose information from an affected Windows VBS Enclave. The provided data indicates no integrity or availability impact.
Which products are identified as affected?
The affected software listed is Microsoft Windows 11 and Microsoft Windows Server 2025.