CVE-2026-83837
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Improper Access Control in Windows Kernel-Mode Drivers
Vulnerability report for CVE-2026-83837, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-13
Last updated on: 2026-10-13
Assigner: Microsoft Corporation
Description
Description
Improper access control in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Microsoft | Windows | 10 Version 1607 10.0.14393.0 |
| Microsoft | Windows | 10 Version 1809 10.0.17763.0 |
| Microsoft | Windows | 10 Version 21H2 10.0.19044.0 |
| Microsoft | Windows | 10 Version 22H2 10.0.19045.0 |
| Microsoft | Windows | 11 version 23H2 10.0.22631.0 |
| Microsoft | Windows | 11 Version 23H2 10.0.22631.0 |
| Microsoft | Windows | Server 2012 6.2.9200.0 |
| Microsoft | Windows | Server 2012 (Server Core installation) 6.2.9200.0 |
| Microsoft | Windows | Server 2012 R2 6.3.9600.0 |
| Microsoft | Windows | Server 2012 R2 (Server Core installation) 6.3.9600.0 |
| Microsoft | Windows | Server 2016 10.0.14393.0 |
| Microsoft | Windows | Server 2016 (Server Core installation) 10.0.14393.0 |
| Microsoft | Windows | Server 2019 10.0.17763.0 |
| Microsoft | Windows | Server 2019 (Server Core installation) 10.0.17763.0 |
| Microsoft | Windows | Server 2022 10.0.20348.0 |
| 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-441 | The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor. |
