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CVE-2021-27090— Windows Secure Kernel Mode Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 2004
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是美国微软（Microsoft）公司的一种桌面操作系统。 Windows安全内核模式特权提升漏洞。

CVSS 7.8 · High EPSS 0.80% · P55

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-27090

Vulnerability Information
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Vulnerability Title
Windows Secure Kernel Mode Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows Secure Kernel Mode 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 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows是美国微软（Microsoft）公司的一种桌面操作系统。 Windows安全内核模式特权提升漏洞。
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 2004 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
Microsoft Windows Server version 2004 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
Microsoft Windows 10 Version 20H2 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_10_20H2:*:*:*:*:*:*:x86:*
Microsoft Windows Server version 20H2 10.0.0 ~ publication cpe:2.3:o:microsoft:windows_server_20H2:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2021-27090

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III. Intelligence Information for CVE-2021-27090

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Vendor Advisories for CVE-2021-27090 (1)

Same Patch Batch · Microsoft · 2021-04-13 · 108 CVEs total

CVE-2021-28481 9.8 CRITICAL Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-28480 9.8 CRITICAL Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-28483 9.0 CRITICAL Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-28327 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28345 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28329 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28330 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28331 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28332 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28333 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28334 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28335 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28336 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28337 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28338 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28339 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28340 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28356 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28357 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability
CVE-2021-28358 8.8 HIGH Remote Procedure Call Runtime Remote Code Execution Vulnerability

Showing top 20 of 108 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 2004
Same vendor: Microsoft

V. Comments for CVE-2021-27090

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