Main Vulnerability Database Vulnerabilities #VU154377

Untrusted Pointer Dereference in Microsoft Windows and Windows Server - CVE-2026-108471

Published: October 13, 2026

Vulnerability identifier: #VU154377

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-108471

CWE-ID: CWE-822

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges, disclose enclave data, or execute code within the target enclave.

The vulnerability exists due to untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave when handling malicious report requests. A local user can run a specially crafted application that submits a malicious report request to an affected enclave to escalate privileges, disclose enclave data, or execute code within the target enclave.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2026-108471

Install security update from vendor's website.

Microsoft Windows - update to 10 1809 10.0.17763.9376
Windows Server - update to 2019 10.0.17763.9376

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2026-108471

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