CVE-2026-42900— Microsoft Windows App Store Elevation of Privilege Vulnerability
Quick assessment
Affected
Microsoft Windows 10 Version 1607
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Microsoft Windows App Store是美国Microsoft公司的一款提供应用下载服务的桌面程序。 Microsoft Windows App Store存在安全漏洞，该漏洞源于共享资源并发执行时同步不当（竞争条件），可能导致未经授权的攻击者通过网络提升权限。以下版本受到影响：Windows 10 Version 1607 10.0.14393.0之前版本、Windows 10 Version 1809 10.0.17763.0之前版本、Windows 10 Version 21H2 1
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 14
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0< 10.0.14393.9339 |
affected |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0< 10.0.17763.9020 |
affected |
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0< 10.0.19044.7548 |
affected |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0< 10.0.19045.7548 |
affected |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0< 10.0.26100.8875 |
affected |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0< 10.0.26200.8875 |
affected |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0< 10.0.28000.2525 |
affected |
| Microsoft | Windows Server 2016 | 10.0.14393.0< 10.0.14393.9339 |
affected |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0< 10.0.14393.9339 |
affected |
| Microsoft | Windows Server 2019 | 10.0.17763.0< 10.0.17763.9020 |
affected |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0< 10.0.17763.9020 |
affected |
| Microsoft | Windows Server 2022 | 10.0.20348.0< 10.0.20348.5386 |
affected |
| Microsoft | Windows Server 2025 | 10.0.26100.0< 10.0.26100.33158 |
affected |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0< 10.0.26100.33158 |
affected |
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-42900
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Microsoft Windows App Store Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Store allows an unauthorized attacker to elevate privileges over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows App Store 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows App Store是美国Microsoft公司的一款提供应用下载服务的桌面程序。 Microsoft Windows App Store存在安全漏洞，该漏洞源于共享资源并发执行时同步不当（竞争条件），可能导致未经授权的攻击者通过网络提升权限。以下版本受到影响：Windows 10 Version 1607 10.0.14393.0之前版本、Windows 10 Version 1809 10.0.17763.0之前版本、Windows 10 Version 21H2 1
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 ~ 10.0.14393.9339 | - |
|
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 ~ 10.0.17763.9020 | - |
|
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 ~ 10.0.19044.7548 | - |
|
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 ~ 10.0.19045.7548 | - |
|
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 ~ 10.0.26100.8875 | - |
|
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 ~ 10.0.26200.8875 | - |
|
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0 ~ 10.0.28000.2525 | - |
|
| Microsoft | Windows Server 2016 | 10.0.14393.0 ~ 10.0.14393.9339 | - |
|
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 ~ 10.0.14393.9339 | - |
|
| Microsoft | Windows Server 2019 | 10.0.17763.0 ~ 10.0.17763.9020 | - |
|
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 ~ 10.0.17763.9020 | - |
|
| Microsoft | Windows Server 2022 | 10.0.20348.0 ~ 10.0.20348.5386 | - |
|
| Microsoft | Windows Server 2025 | 10.0.26100.0 ~ 10.0.26100.33158 | - |
|
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 ~ 10.0.26100.33158 | - |
|
II. Public POCs for CVE-2026-42900
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-42900
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-42900 (1)
Same Patch Batch · Microsoft · 2026-07-14 · 570 CVEs total
| CVE-2026-57092 | 9.9 CRITICAL | Microsoft Windows VMSwitch Elevation of Privilege Vulnerability |
| CVE-2026-50518 | 9.8 CRITICAL | Windows DHCP Server Remote Code Execution Vulnerability |
| CVE-2026-55010 | 9.8 CRITICAL | Minecraft Bedrock Dedicated Server Remote Code Execution Vulnerability |
| CVE-2026-50447 | 9.8 CRITICAL | Windows Message Queuing Service (MSMQ) Remote Code Execution Vulnerability |
| CVE-2026-42990 | 9.8 CRITICAL | SQL Server ODBC driver Elevation of Privilege Vulnerability |
| CVE-2026-55944 | 9.8 CRITICAL | Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Co |
| CVE-2026-56159 | 9.8 CRITICAL | DHCP Server Service Remote Code Execution Vulnerability |
| CVE-2026-56190 | 9.8 CRITICAL | Remote Desktop Protocol Remote Code Execution Vulnerability |
| CVE-2026-56188 | 9.8 CRITICAL | Windows Server Network driver Remote Code Execution Vulnerability |
| CVE-2026-58644 | 9.8 CRITICAL | Microsoft SharePoint Remote Code Execution Vulnerability |
| CVE-2026-50522 | 9.8 CRITICAL | Microsoft SharePoint Remote Code Execution Vulnerability |
| CVE-2026-54118 | 9.8 CRITICAL | Microsoft SQL Server Remote Code Execution Vulnerability |
| CVE-2026-54117 | 9.8 CRITICAL | Microsoft SQL Server Remote Code Execution Vulnerability |
| CVE-2026-54990 | 9.8 CRITICAL | Remote Desktop Client Remote Code Execution Vulnerability |
| CVE-2026-49172 | 9.8 CRITICAL | Windows FTP Service Remote Code Execution Vulnerability |
| CVE-2026-48561 | 9.6 CRITICAL | Microsoft Edge Copilot Remote Code Execution Vulnerability |
| CVE-2026-50380 | 9.6 CRITICAL | Windows GDI+ Remote Code Execution Vulnerability |
| CVE-2026-55008 | 9.6 CRITICAL | Microsoft Exchange Server Spoofing Vulnerability |
| CVE-2026-49798 | 9.3 CRITICAL | Windows Kernel Elevation of Privilege Vulnerability |
| CVE-2026-55040 | 9.1 CRITICAL | Microsoft SharePoint Server Security Feature Bypass Vulnerability |
Showing top 20 of 570 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Windows 10 Version 1607
-
CVE-2026-62727
Windows Telephony Service Elevation of Privilege Vulnerabili -
CVE-2026-62738
Windows Management Instrumentation Information Disclosure Vu -
CVE-2026-65796
Windows iSCSI Target Service Remote Code Execution Vulnerabi -
CVE-2026-65798
Windows DNS Elevation of Privilege Vulnerability -
CVE-2026-65799
Windows DNS Elevation of Privilege Vulnerability
Same vendor: Microsoft
-
CVE-2026-62316
Microsoft UFO: DNS Rebinding → Unauthenticated File Read / C -
CVE-2026-69502
Azure SQL Database Elevation of Privilege Vulnerability -
CVE-2026-69855
Microsoft Copilot in Azure Information Disclosure Vulnerabil -
CVE-2026-69543
Azure Virtual Machines Elevation of Privilege Vulnerability -
CVE-2026-69558
Microsoft Partner Center Information Disclosure Vulnerabilit
Same weakness: CWE-362
-
CVE-2026-77638
Tor <0.4.9.11中间人竞争条件漏洞 -
CVE-2025-62300
HCL IntelliOps Event Management is affected by multiple secu -
CVE-2026-76393
Race Condition during Model Upload through the REST API in S -
CVE-2026-62727
Windows Telephony Service Elevation of Privilege Vulnerabili -
CVE-2026-45742
Gotenberg: Concurrent Execution using Shared Resource with I
V. Comments for CVE-2026-42900
No comments yet