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CVE-2021-43905— Microsoft Office app Remote Code Execution Vulnerability

Quick assessment

Affected
Microsoft Office app
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 Office是美国微软（Microsoft）公司的一款办公软件套件产品。该产品常用组件包括Word、Excel、Access、Powerpoint、FrontPage等。 Microsoft Office存在代码注入漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

CVSS 9.6 · Critical EPSS 2.98% · P87

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Microsoft Office app < publication affected
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I. Basic Information for CVE-2021-43905

Vulnerability Information
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Vulnerability Title
Microsoft Office app Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Microsoft Office app Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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 Office 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Office是美国微软（Microsoft）公司的一款办公软件套件产品。该产品常用组件包括Word、Excel、Access、Powerpoint、FrontPage等。 Microsoft Office存在代码注入漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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 Office app 0 ~ publication cpe:2.3:a:microsoft:office:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2021-43905

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III. Intelligence Information for CVE-2021-43905

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Vendor Advisories for CVE-2021-43905 (1)

Same Patch Batch · Microsoft · 2021-12-15 · 67 CVEs total

CVE-2021-42313 10.0 CRITICAL Microsoft Defender for IoT Remote Code Execution Vulnerability
CVE-2021-42311 10.0 CRITICAL Microsoft Defender for IoT Remote Code Execution Vulnerability
CVE-2021-43215 9.8 CRITICAL iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution
CVE-2021-43907 9.8 CRITICAL Visual Studio Code WSL Extension Remote Code Execution Vulnerability
CVE-2021-43899 9.8 CRITICAL Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability
CVE-2021-43882 9.0 CRITICAL Microsoft Defender for IoT Remote Code Execution Vulnerability
CVE-2021-42315 8.8 HIGH Microsoft Defender for IoT Remote Code Execution Vulnerability
CVE-2021-42314 8.8 HIGH Microsoft Defender for IoT Remote Code Execution Vulnerability
CVE-2021-41365 8.8 HIGH Microsoft Defender for IoT Remote Code Execution Vulnerability
CVE-2021-42309 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2021-43877 8.8 HIGH ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability
CVE-2021-43217 8.1 HIGH Windows Encrypting File System (EFS) Remote Code Execution Vulnerability
CVE-2021-42310 8.1 HIGH Microsoft Defender for IoT Remote Code Execution Vulnerability
CVE-2021-42320 8.0 HIGH Microsoft SharePoint Server Spoofing Vulnerability
CVE-2021-43232 7.8 HIGH Windows Event Tracing Remote Code Execution Vulnerability
CVE-2021-43226 7.8 HIGH Windows Common Log File System Driver Elevation of Privilege Vulnerability
CVE-2021-43231 7.8 HIGH Windows NTFS Elevation of Privilege Vulnerability
CVE-2021-43223 7.8 HIGH Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
CVE-2021-43230 7.8 HIGH Windows NTFS Elevation of Privilege Vulnerability
CVE-2021-43229 7.8 HIGH Windows NTFS Elevation of Privilege Vulnerability

Showing top 20 of 67 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same vendor: Microsoft

V. Comments for CVE-2021-43905

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