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CVE-2022-40733

Quick assessment

Affected
Microsoft Windows
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 win32kbase.sys是美国微软（Microsoft）公司的一个驱动程序。 Microsoft win32kbase.sys存在代码问题漏洞，该漏洞源于win32kbase.sys驱动程序包含一个访问冲突漏洞。攻击者利用该漏洞通过一组特制的系统调用可以导致重新启动。非特权用户可以运行特制的代码来触发拒绝服务。

CVSS 5.0 · Medium EPSS 0.83% · P56

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2022-40733

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An access violation vulnerability exists in the DirectComposition functionality win32kbase.sys driver version 10.0.22000.593 as part of Windows 11 version 22000.593 and version 10.0.20348.643 as part of Windows Server 2022 version 20348.643. A specially-crafted set of syscalls can lead to a reboot. An unprivileged user can run specially-crafted code to trigger Denial Of Service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft win32kbase.sys 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft win32kbase.sys是美国微软（Microsoft）公司的一个驱动程序。 Microsoft win32kbase.sys存在代码问题漏洞，该漏洞源于win32kbase.sys驱动程序包含一个访问冲突漏洞。攻击者利用该漏洞通过一组特制的系统调用可以导致重新启动。非特权用户可以运行特制的代码来触发拒绝服务。
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 Build 22000.593 -

II. Public POCs for CVE-2022-40733

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III. Intelligence Information for CVE-2022-40733

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Vendor Advisories for CVE-2022-40733 (1)

Same Patch Batch · Microsoft · 2024-12-18 · 10 CVEs total

CVE-2024-43106 7.1 HIGH Microsoft Office 安全漏洞
CVE-2024-42220 7.1 HIGH Microsoft Office 安全漏洞
CVE-2024-42004 7.1 HIGH Microsoft Teams 安全漏洞
CVE-2024-41165 7.1 HIGH Microsoft Office 安全漏洞
CVE-2024-41159 7.1 HIGH Microsoft Office 安全漏洞
CVE-2024-41145 7.1 HIGH Microsoft Teams 安全漏洞
CVE-2024-41138 7.1 HIGH Microsoft Teams 安全漏洞
CVE-2024-39804 7.1 HIGH Microsoft Office PowerPoint 安全漏洞
CVE-2022-40732 5.0 MEDIUM Microsoft win32kbase.sys 代码问题漏洞

IV. Related Vulnerabilities

Same product: Windows
Same vendor: Microsoft
Same weakness: CWE-476

V. Comments for CVE-2022-40733

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