CVE-2026-26174: 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 Server Update Service allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a race condition (CWE-362) in the Windows Server Update Service component of Windows 10 Version 1607 (build 10.0.14393.0). The flaw arises from concurrent execution using a shared resource without proper synchronization, enabling an authorized local attacker to elevate privileges. The CVSS 3.1 vector indicates the attack requires local access with high attack complexity and low privileges but no user interaction. Confidentiality, integrity, and availability impacts are all high. Microsoft has published an official fix to remediate 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 information, modification of system data, and disruption of system availability. No known exploits are currently reported in the wild.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is strongly recommended to apply the security update provided by Microsoft for Windows 10 Version 1607 to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-26174: 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 Server Update 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 involves a race condition (CWE-362) in the Windows Server Update Service component of Windows 10 Version 1607 (build 10.0.14393.0). The flaw arises from concurrent execution using a shared resource without proper synchronization, enabling an authorized local attacker to elevate privileges. The CVSS 3.1 vector indicates the attack requires local access with high attack complexity and low privileges but no user interaction. Confidentiality, integrity, and availability impacts are all high. Microsoft has published an official fix to remediate 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 information, modification of system data, and disruption of system availability. No known exploits are currently reported in the wild.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is strongly recommended to apply the security update provided by Microsoft for Windows 10 Version 1607 to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T18:33:57.777Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26174","vendor":"Microsoft"}]
Threat ID: 69de7a1b82d89c981fd6a6d0
Added to database: 4/14/2026, 5:32:11 PM
Last enriched: 5/19/2026, 10:35:48 AM
Last updated: 5/29/2026, 6:47:02 AM
Views: 39
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