CVE-2026-26172: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 10 Version 21H2
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 Windows 10 Version 21H2 (build 10.0.19044.0). Due to improper synchronization when accessing shared resources concurrently, an authorized local attacker can exploit this flaw to elevate their privileges. The vulnerability is confirmed and publicly disclosed with a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official patch to remediate this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges on the affected system. This can lead to full compromise of system confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
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-2026-26172 to remediate this vulnerability.
CVE-2026-26172: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 10 Version 21H2
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a race condition (CWE-362) in the Windows Push Notifications component of Windows 10 Version 21H2 (build 10.0.19044.0). Due to improper synchronization when accessing shared resources concurrently, an authorized local attacker can exploit this flaw to elevate their privileges. The vulnerability is confirmed and publicly disclosed with a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official patch to remediate this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges on the affected system. This can lead to full compromise of system confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
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-2026-26172 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T18:33:57.776Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26172","vendor":"Microsoft"}]
Threat ID: 69de7a1b82d89c981fd6a6ca
Added to database: 4/14/2026, 5:32:11 PM
Last enriched: 4/14/2026, 7:09:26 PM
Last updated: 4/15/2026, 6:04:55 AM
Views: 3
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