CVE-2026-83939
Undergoing Analysis Undergoing Analysis - In Progress

Untrusted Pointer Dereference in Windows Secure Kernel Mode

Publication date: 2026-09-08

Last updated on: 2026-09-09

Assigner: Microsoft Corporation

Description
Untrusted pointer dereference in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.

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Meta Information

Published
2026-09-08
Last Modified
2026-09-09
Generated
2026-09-09
AI Q&A
2026-09-09
EPSS Evaluated
N/A
NVD
CVE-2026-83939

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft windows_secure_kernel *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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

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Executive Summary

This vulnerability is an untrusted pointer dereference flaw in Windows Secure Kernel Mode. It allows an authorized attacker with local access to elevate their privileges by exploiting improper handling of pointers in the kernel.

Impact Analysis

An attacker could gain elevated privileges on your system, allowing them to perform unauthorized actions such as installing malware, accessing sensitive data, or taking control of your device.

Mitigation Strategies

Apply the latest security updates from Microsoft immediately to patch the Windows Secure Kernel Mode vulnerability. Monitor Microsoft's security advisories for patches and ensure all systems are updated promptly.

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