CVE-2026-83735

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Windows Kernel Invalid Pointer Dereference Privilege Escalation

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Microsoft Corporation

Description

Release of invalid pointer or reference in Windows Kernel 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

2026-10-13

Generated

2026-10-14

AI Q&A

2026-10-14

EPSS Evaluated

N/A

NVD

CVE-2026-83735

EUVD

EUVD-2026-99973

Affected Vendors & Products

Vendor	Product	Version / Range
Microsoft	Windows	11 version 23H2 10.0.22631.0
Microsoft	Windows	11 Version 23H2 10.0.22631.0
Microsoft	Windows	11 Version 24H2 10.0.26100.0
Microsoft	Windows	11 Version 25H2 10.0.26200.0
Microsoft	Windows	11 version 26H1 10.0.28000.0
Microsoft	Windows	11 Version 26H2 10.0.26300.0
Microsoft	Windows	Server 2025 10.0.26100.0
Microsoft	Windows	Server 2025 (Server Core installation) 10.0.26100.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-763	The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly.

Attack-Flow Graph

Executive Summary

This vulnerability involves a release of an invalid pointer or reference in the Windows Kernel. An authorized attacker can exploit this to elevate their privileges locally on an affected system.

Impact Analysis

An attacker with local access could gain higher privileges, allowing them to perform unauthorized actions such as installing programs, viewing or deleting data, or creating new accounts with full user rights.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements under GDPR, HIPAA, or other regulations that mandate strict access controls and data protection measures.

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