CVE-2026-96313: CWE-306: Missing Authentication for Critical Function in Microsoft Windows 10 Version 1809
Description
CVE-2026-96313 is a high-severity vulnerability in Microsoft Windows 10 Version 1809 involving missing authentication for a critical function in Windows Push Notifications. This flaw allows an authorized local attacker to elevate privileges. The vulnerability affects multiple Windows 10 builds prior to their respective patched versions. An official fix is available from Microsoft.
CVSS v3.1
Score 7.0high
Affected software
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 11 version 26H1
Microsoft
Windows 11 Version 26H2
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
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 CWE-306 (Missing Authentication for Critical Function), exists in the Windows Push Notifications component of Microsoft Windows 10 Version 1809 and later builds. It allows an authorized local attacker to elevate their privileges due to missing authentication checks on a critical function. The CVSS v3.1 base score is 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate privileges on the affected Windows 10 systems, potentially gaining higher-level access than intended. This can compromise system confidentiality, integrity, and availability.
Mitigation Recommendations
Microsoft has released official patches addressing this vulnerability. Users and administrators should apply the updates provided by Microsoft to affected Windows 10 versions as soon as possible. No additional mitigation steps are indicated beyond applying the official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-22T22:31:49.522Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96313","vendor":"Microsoft"}]
Threat ID: 6ace85792cdf04f656a0048b
Added to database: 10/13/2026, 19:24:41 UTC
Last enriched: 10/14/2026, 00:19:57 UTC
Last updated: 10/14/2026, 00:19:57 UTC
Views: 2
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