CVE-2026-108471

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Untrusted Pointer Dereference in Windows VBS Enclave

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-108471

EUVD

EUVD-2026-100456

Affected Vendors & Products

Vendor	Product	Version / Range
Microsoft	Windows	10 Version 1809 10.0.17763.0
Microsoft	Windows	Server 2019 10.0.17763.0
Microsoft	Windows	Server 2019 (Server Core installation) 10.0.17763.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-184	The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete.
CWE-822	The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.

Attack-Flow Graph

Executive Summary

This vulnerability involves an untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave. An authorized attacker can exploit this to elevate their privileges locally on a system.

Impact Analysis

An attacker could gain higher-level access to your system, allowing them to perform unauthorized actions such as installing malware, accessing sensitive data, or taking control of your device.

Compliance Impact

This vulnerability allows local privilege escalation in Windows VBS Enclave, which could enable unauthorized access to sensitive data or system functions. Such unauthorized access may violate compliance requirements under GDPR (data protection) or HIPAA (health information security) by exposing protected data or undermining security controls.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave.

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