Windows 11 23h2
CVE-2026-20819
MEDIUM
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Primary rating from Vendor (microsoft) · only source for this CVE.
CVSS VectorVendor: microsoft
Lifecycle Timeline
2DescriptionCVE.org
Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to disclose information locally.
AnalysisAI
Improper pointer validation in Windows VBS Enclave allows authenticated local users to read sensitive information on Windows 11 systems across multiple versions. An attacker with local access and valid credentials can exploit this memory safety flaw to bypass enclave protections and disclose confidential data. No patch is currently available.
Technical ContextAI
Affects Windows 11 23H2. Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to disclose information locally.
RemediationAI
Monitor vendor advisories for a patch.
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Same weakness CWE-822 – Untrusted Pointer Dereference
View allSame technique Information Disclosure
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External POC / Exploit Code
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