Medium severity5.5NVD Advisory· Published Jan 13, 2026· Updated Jul 30, 2026

CVE-2026-20819

Description

Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to disclose information locally.

Microsoft/Windows 11 23h22 versions
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*range: <10.0.22631.6491
- (no CPE)range: 10.0.22631.0
Microsoft/Windows 11 24h22 versions
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*range: <10.0.26100.7623
- (no CPE)range: 10.0.26100.0
Microsoft/Windows 11 25h22 versions
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*range: <10.0.26200.7623
- (no CPE)range: 10.0.26200.0
Microsoft/Windows Virtualization-Based Security (VBS) Enclavellm-fuzzy
Microsoft/Windows 10 version 1607cpe-rescue
Range: 10.0.22631.0