CVE-2026-34351: 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 TCP/IP allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-34351) involves a race condition (CWE-362) in the Windows TCP/IP implementation on Windows 10 Version 1607 (build 10.0.14393.0). Improper synchronization of concurrent execution using shared resources can be exploited by an authorized local attacker to elevate privileges. The vulnerability has been assigned a CVSS v3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate this issue.
Potential Impact
An authorized local attacker can exploit this race condition to elevate privileges on the affected system. This could lead to full control over the system, compromising confidentiality, integrity, and availability of the affected Windows 10 Version 1607 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-2026-34351 to remediate this vulnerability.
CVE-2026-34351: 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 TCP/IP 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 (CVE-2026-34351) involves a race condition (CWE-362) in the Windows TCP/IP implementation on Windows 10 Version 1607 (build 10.0.14393.0). Improper synchronization of concurrent execution using shared resources can be exploited by an authorized local attacker to elevate privileges. The vulnerability has been assigned a CVSS v3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate this issue.
Potential Impact
An authorized local attacker can exploit this race condition to elevate privileges on the affected system. This could lead to full control over the system, compromising confidentiality, integrity, and availability of the affected Windows 10 Version 1607 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-2026-34351 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-26T21:02:16.447Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34351","vendor":"Microsoft"}]
Threat ID: 6a036543cbff5d861008c55f
Added to database: 05/12/2026, 17:37:07 UTC
Last enriched: 06/19/2026, 17:33:33 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 112
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