CVE-2026-20819

MediumCVSS 5.5/10Last modified Jul 30, 2026

Description

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

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-822

Affected software

Vendor	Product	Versions
Microsoft	Windows 11 version 23H2	>= 10.0.22631.0, < 10.0.22631.6491
Microsoft	Windows 11 Version 23H2	>= 10.0.22631.0, < 10.0.22631.6491
Microsoft	Windows 11 Version 24H2	>= 10.0.26100.0, < 10.0.26100.7623
Microsoft	Windows 11 Version 25H2	>= 10.0.26200.0, < 10.0.26200.7623

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20819Vendor Advisory

Timeline

Published: Jan 13, 2026
Last modified: Jul 30, 2026
NVD status: Analyzed

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