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CVE-2026-20819

nvd nist
Published: Jan 13, 2026Modified: Jan 14, 2026

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5.5
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Exploitability: 1.8 / Impact: 3.6
Source: secure@microsoft.com

Description

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

Affected (3)

Microsoft
3 products
Windows 11 23h2
Windows 11 24h2
Windows 11 25h2
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Windows 11 23h2
Before 10.0.22631.6491
Windows 11 24h2
Before 10.0.26100.7623
Windows 11 25h2
Before 10.0.26200.7623

Related CWEs

CWE-822
Untrusted Pointer Dereference
The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.

References (1)

Source: secure@microsoft.com
Vendor Advisory

Timeline

No history available yet.