CVE-2026-42979: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 10 Version 1809
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a race condition (CWE-362) in the Windows Push Notifications component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). Improper synchronization of concurrent execution using shared resources can be exploited by an authorized local attacker to elevate privileges. The CVSS v3.1 base score is 7.8, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and scope changed. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this race condition to elevate their privileges on the affected system. This could lead to full system compromise, including complete confidentiality, integrity, and availability impact as indicated by the CVSS metrics.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42979 to remediate this vulnerability.
CVE-2026-42979: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 10 Version 1809
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a race condition (CWE-362) in the Windows Push Notifications component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). Improper synchronization of concurrent execution using shared resources can be exploited by an authorized local attacker to elevate privileges. The CVSS v3.1 base score is 7.8, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and scope changed. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this race condition to elevate their privileges on the affected system. This could lead to full system compromise, including complete confidentiality, integrity, and availability impact as indicated by the CVSS metrics.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42979 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-30T23:43:50.745Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42979","vendor":"Microsoft"}]
Threat ID: 6a284cc88dd33fbd856648df
Added to database: 06/09/2026, 17:26:32 UTC
Last enriched: 07/29/2026, 21:49:52 UTC
Last updated: 07/31/2026, 19:30:13 UTC
Views: 55
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