CVE-2026-34342: 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 Print Spooler Components allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a race condition (CWE-362) in the Windows Print Spooler service on Windows 10 Version 1607 (build 10.0.14393.0). Improper synchronization of concurrent execution using shared resources enables an authorized local attacker to elevate privileges. The CVSS v3.1 score is 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability. Microsoft has released 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 unauthorized access to sensitive data and disruption of system availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official patch is available from Microsoft to remediate this vulnerability. Users and administrators should apply the update provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34342 to protect affected systems. No additional mitigations are specified by the vendor.
CVE-2026-34342: 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 Print Spooler Components 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 Print Spooler service on Windows 10 Version 1607 (build 10.0.14393.0). Improper synchronization of concurrent execution using shared resources enables an authorized local attacker to elevate privileges. The CVSS v3.1 score is 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability. Microsoft has released 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 unauthorized access to sensitive data and disruption of system availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official patch is available from Microsoft to remediate this vulnerability. Users and administrators should apply the update provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34342 to protect affected systems. No additional mitigations are specified by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-26T21:02:16.446Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34342","vendor":"Microsoft"}]
Threat ID: 6a036540cbff5d861008c487
Added to database: 5/12/2026, 5:37:04 PM
Last enriched: 5/12/2026, 7:22:40 PM
Last updated: 5/13/2026, 4:27:13 AM
Views: 2
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