Privilege Elevation Vulnerability in Windows Virtualization-Based Security Enclave
CVE-2026-83498

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 11 Version 23h2
Windows 11 Version 23h2
Windows 11 Version 24h2
Windows 11 Version 25h2
Vendor
CVE Published:
8 September 2026

What is CVE-2026-83498?

A vulnerability exists in the Windows Virtualization-Based Security (VBS) Enclave, which could allow an authorized attacker to exploit untrusted pointer dereferencing. This exploit could potentially lead to local elevation of privileges, enabling unauthorized users to gain higher access within the affected system. Effective mitigation strategies should be employed to safeguard sensitive data and maintain operational integrity.

Affected Version(s)

Windows 11 version 23H2 ARM64-based Systems 10.0.22631.0 < 10.0.22631.7582

Windows 11 Version 23H2 x64-based Systems 10.0.22631.0 < 10.0.22631.7582

Windows 11 Version 24H2 ARM64-based Systems 10.0.26100.0 < 10.0.26100.9445

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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