CVE-2026-20822: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-20822) involves a use-after-free condition in the Microsoft Graphics Component on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with limited privileges and no user interaction. Successful exploitation can lead to a complete compromise of confidentiality, integrity, and availability by elevating privileges. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate privileges, potentially gaining full control over the affected system. The vulnerability impacts confidentiality, integrity, and availability at a high level.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided by Microsoft for Windows 10 Version 1607 (build 10.0.14393.0) as soon as possible to remediate this vulnerability.
CVE-2026-20822: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows Server 2016
Microsoft
Windows Server 2016 (Server Core installation)
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2022, 23H2 Edition (Server Core installation)
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20822) involves a use-after-free condition in the Microsoft Graphics Component on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with limited privileges and no user interaction. Successful exploitation can lead to a complete compromise of confidentiality, integrity, and availability by elevating privileges. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate privileges, potentially gaining full control over the affected system. The vulnerability impacts confidentiality, integrity, and availability at a high level.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided by Microsoft for Windows 10 Version 1607 (build 10.0.14393.0) as soon as possible to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-03T05:54:20.374Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20822","vendor":"Microsoft"}]
Threat ID: 69668adba60475309f9adfa0
Added to database: 01/13/2026, 18:11:39 UTC
Last enriched: 07/30/2026, 23:49:00 UTC
Last updated: 09/10/2026, 22:26:05 UTC
Views: 231
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