CVE-2026-24290: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1809
Improper access control in Windows Projected File System allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability, identified as CVE-2026-24290 and categorized under CWE-284 (Improper Access Control), affects Windows 10 Version 1809 (build 10.0.17763.0). It involves the Windows Projected File System component, where improper access control can be exploited by an authorized local user to gain elevated privileges. The CVSS v3.1 base score is 7.8, indicating high severity with impacts on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as detailed in their security update guide.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate their privileges on the affected system, potentially gaining higher-level access than intended. This could lead to full system compromise, including unauthorized access to sensitive data and system resources.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24290 to remediate this vulnerability.
CVE-2026-24290: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1809
Description
Improper access control in Windows Projected File System allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 22H3
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
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, identified as CVE-2026-24290 and categorized under CWE-284 (Improper Access Control), affects Windows 10 Version 1809 (build 10.0.17763.0). It involves the Windows Projected File System component, where improper access control can be exploited by an authorized local user to gain elevated privileges. The CVSS v3.1 base score is 7.8, indicating high severity with impacts on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as detailed in their security update guide.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate their privileges on the affected system, potentially gaining higher-level access than intended. This could lead to full system compromise, including unauthorized access to sensitive data and system resources.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24290 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-01-21T21:28:02.968Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24290","vendor":"Microsoft"}]
Threat ID: 69b0562aea502d3aa87d697e
Added to database: 03/10/2026, 17:34:34 UTC
Last enriched: 06/19/2026, 20:26:26 UTC
Last updated: 09/14/2026, 22:01:32 UTC
Views: 193
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