CVE-2026-88074: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
Integer overflow or wraparound 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 10.0.26300.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must already be authorized on the affected Windows 11 system and have local access. The issue is not described as remotely exploitable or requiring user interaction.
What is the potential impact of successful exploitation?
Successful exploitation can allow local elevation of privilege. The provided severity vector indicates high impacts to confidentiality, integrity, and availability.
What component is affected?
The affected component is the Windows Virtualization-Based Security (VBS) Enclave in Microsoft Windows 11. The underlying weakness is an integer overflow or wraparound.