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CVE-2021-43891— Visual Studio Code Remote Code Execution Vulnerability

Quick assessment

Affected
Microsoft Visual Studio Code
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Visual Studio Code是美国微软（Microsoft）公司的一款开源的代码编辑器。 Microsoft Visual Studio Code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 7.8 · High EPSS 13.85% · P96

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
Microsoft Visual Studio Code 1.0.0< 1.63.1 affected
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I. Basic Information for CVE-2021-43891

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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Vulnerability Title
Visual Studio Code Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Visual Studio Code Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 Visual Studio Code 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Visual Studio Code是美国微软（Microsoft）公司的一款开源的代码编辑器。 Microsoft Visual Studio Code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 Visual Studio Code 1.0.0 ~ 1.63.1 cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2021-43891

# POC Description Source Link Shenlong Link
1 Proof of Concept for CVE-2021-43891 https://github.com/parsiya/code-wsl-rce POC Details
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III. Intelligence Information for CVE-2021-43891

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Vendor Advisories for CVE-2021-43891 (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-2021-43905 9.6 CRITICAL Microsoft Office app 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

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

IV. Related Vulnerabilities

Same product: Visual Studio Code
Same vendor: Microsoft

V. Comments for CVE-2021-43891

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