CVE-2026-42912: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 10 Version 1607
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-42912) involves a race condition (CWE-362) in the Windows Telephony Service component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). Improper synchronization during concurrent execution of shared resources enables a local attacker with some level of authorization to elevate their privileges. The CVSS v3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this race condition to elevate privileges on the affected system. This could lead to full system compromise, including unauthorized access to sensitive data and the ability to execute code with higher privileges. The vulnerability affects confidentiality, integrity, and availability of the system.
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-2026-42912 to remediate this vulnerability.
CVE-2026-42912: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 10 Version 1607
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-42912) involves a race condition (CWE-362) in the Windows Telephony Service component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). Improper synchronization during concurrent execution of shared resources enables a local attacker with some level of authorization to elevate their privileges. The CVSS v3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this race condition to elevate privileges on the affected system. This could lead to full system compromise, including unauthorized access to sensitive data and the ability to execute code with higher privileges. The vulnerability affects confidentiality, integrity, and availability of the system.
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-2026-42912 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-30T22:35:54.968Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42912","vendor":"Microsoft"}]
Threat ID: 6a284cc48dd33fbd85664814
Added to database: 6/9/2026, 5:26:28 PM
Last enriched: 6/9/2026, 11:11:11 PM
Last updated: 6/10/2026, 5:13:15 AM
Views: 2
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