CVE-2021-34486— Windows Event Tracing Elevation of Privilege Vulnerability
Quick assessment
Affected
Microsoft Windows 10 Version 1809
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Microsoft Windows Event Tracing是美国微软（Microsoft）公司的一个应用软件。 提供了一种机制来跟踪和记录由用户模式应用程序和内核模式驱动程序引发的事件。 Microsoft Windows Event Tracing存在资源管理错误漏洞。以下产品和版本受到影响：Windows 10 Version 21H1 for 32-bit Systems,Windows 10 Version 2004 for 32-bit Systems,Windows 10 Version
In-the-Wild Activity Observed
cisa_kev · confirmed
Possible ATT&CK Techniques 1 AI
T1068.003Affected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0< 10.0.17763.2114 |
affected |
10.0.0< 10.0.17763.2114 |
affected | ||
| Microsoft | Windows 10 Version 1909 | 10.0.0< 10.0.18363.1734 |
affected |
| Microsoft | Windows 10 Version 2004 | 10.0.0< 10.0.19041.1165 |
affected |
| Microsoft | Windows 10 Version 20H2 | 10.0.0< 10.0.19042.1165 |
affected |
| Microsoft | Windows 10 Version 21H1 | 10.0.0< 10.0.19043.1165 |
affected |
| Microsoft | Windows Server 2019 | 10.0.17763.0< 10.0.17763.2114 |
affected |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0< 10.0.17763.2114 |
affected |
| Microsoft | Windows Server version 2004 | 10.0.0< 10.0.19041.1165 |
affected |
| Microsoft | Windows Server version 20H2 | 10.0.0< 10.0.19042.1165 |
affected |
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I. Basic Information for CVE-2021-34486
Vulnerability Information
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Vulnerability Title
Windows Event Tracing Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows Event Tracing Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Event Tracing 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Event Tracing是美国微软（Microsoft）公司的一个应用软件。 提供了一种机制来跟踪和记录由用户模式应用程序和内核模式驱动程序引发的事件。 Microsoft Windows Event Tracing存在资源管理错误漏洞。以下产品和版本受到影响：Windows 10 Version 21H1 for 32-bit Systems,Windows 10 Version 2004 for 32-bit Systems,Windows 10 Version
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)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 ~ 10.0.17763.2114 | - |
|
| Microsoft | Windows 10 Version 1809 | 10.0.0 ~ 10.0.17763.2114 | - |
|
| Microsoft | Windows 10 Version 1909 | 10.0.0 ~ 10.0.18363.1734 | - |
|
| Microsoft | Windows 10 Version 2004 | 10.0.0 ~ 10.0.19041.1165 | - |
|
| Microsoft | Windows 10 Version 20H2 | 10.0.0 ~ 10.0.19042.1165 | - |
|
| Microsoft | Windows 10 Version 21H1 | 10.0.0 ~ 10.0.19043.1165 | - |
|
| Microsoft | Windows Server 2019 | 10.0.17763.0 ~ 10.0.17763.2114 | - |
|
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 ~ 10.0.17763.2114 | - |
|
| Microsoft | Windows Server version 2004 | 10.0.0 ~ 10.0.19041.1165 | - |
|
| Microsoft | Windows Server version 20H2 | 10.0.0 ~ 10.0.19042.1165 | - |
|
II. Public POCs for CVE-2021-34486
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Windows Etw LPE | https://github.com/KaLendsi/CVE-2021-34486 | POC Details |
| 2 | None | https://github.com/b1tg/CVE-2021-34486-exp | POC Details |
AI-Generated POC
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Vendor Advisories for CVE-2021-34486 (2)
Same Patch Batch · Microsoft · 2021-08-12 · 45 CVEs total
| CVE-2021-26424 | 9.9 CRITICAL | Windows TCP/IP Remote Code Execution Vulnerability |
| CVE-2021-26432 | 9.8 CRITICAL | Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability |
| CVE-2021-36947 | 8.8 HIGH | Windows Print Spooler Remote Code Execution Vulnerability |
| CVE-2021-34535 | 8.8 HIGH | Remote Desktop Client Remote Code Execution Vulnerability |
| CVE-2021-36936 | 8.8 HIGH | Windows Print Spooler Remote Code Execution Vulnerability |
| CVE-2021-34524 | 8.1 HIGH | Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability |
| CVE-2021-34537 | 7.8 HIGH | Windows Bluetooth Driver Elevation of Privilege Vulnerability |
| CVE-2021-36958 | 7.8 HIGH | Windows Print Spooler Remote Code Execution Vulnerability |
| CVE-2021-26431 | 7.8 HIGH | Windows Recovery Environment Agent Elevation of Privilege Vulnerability |
| CVE-2021-26425 | 7.8 HIGH | Windows Event Tracing Elevation of Privilege Vulnerability |
| CVE-2021-34471 | 7.8 HIGH | Microsoft Defender Elevation of Privilege Vulnerability |
| CVE-2021-36948 | 7.8 HIGH | Windows Update Medic Service Elevation of Privilege Vulnerability |
| CVE-2021-34478 | 7.8 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2021-36927 | 7.8 HIGH | Windows Digital TV Tuner device registration application Elevation of Privilege Vulnerabil |
| CVE-2021-34483 | 7.8 HIGH | Windows Print Spooler Elevation of Privilege Vulnerability |
| CVE-2021-36937 | 7.8 HIGH | Windows Media MPEG-4 Video Decoder Remote Code Execution Vulnerability |
| CVE-2021-34536 | 7.8 HIGH | Windows Storage Spaces Controller Elevation of Privilege Vulnerability |
| CVE-2021-34484 | 7.8 HIGH | Windows User Profile Service Elevation of Privilege Vulnerability |
| CVE-2021-34533 | 7.8 HIGH | Windows Graphics Component Font Parsing Remote Code Execution Vulnerability |
| CVE-2021-34530 | 7.8 HIGH | Windows Graphics Component Remote Code Execution Vulnerability |
Showing top 20 of 45 CVEs. View all on vendor page → →
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V. Comments for CVE-2021-34486
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