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CVE-2021-24042

Quick assessment

Affected
Facebook WhatsApp Desktop
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.

Facebook WhatsApp是美国Facebook公司的一套利用网络传送短信的移动应用程序。该应用程序通过智能手机中的联络人信息，查找使用该软件的联络人传送文字、图片等。 WhatsApp 存在安全漏洞，如果用户对恶意行为者进行 1:1 调用，则 WhatsApp Desktop 可能允许越界写入。以下产品和版本受到影响：WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23, W

AI Predicted 5.9 Difficulty: Moderate EPSS 1.24% · P68

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-24042

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The calling logic for WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23, WhatsApp for iOS prior to v2.21.230, WhatsApp Business for iOS prior to v2.21.230, WhatsApp for KaiOS prior to v2.2143, WhatsApp Desktop prior to v2.2146 could have allowed an out-of-bounds write if a user makes a 1:1 call to a malicious actor.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
WhatsApp 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Facebook WhatsApp是美国Facebook公司的一套利用网络传送短信的移动应用程序。该应用程序通过智能手机中的联络人信息，查找使用该软件的联络人传送文字、图片等。 WhatsApp 存在安全漏洞，如果用户对恶意行为者进行 1:1 调用，则 WhatsApp Desktop 可能允许越界写入。以下产品和版本受到影响：WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23, W
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
Facebook WhatsApp Desktop unspecified ~ v2.2146 -
Facebook WhatsApp for KaiOS unspecified ~ v2.2143 -
Facebook WhatsApp Business for iOS unspecified ~ v2.21.230 -
Facebook WhatsApp for iOS unspecified ~ v2.21.230 -
Facebook WhatsApp Business for Android unspecified ~ v2.21.23 -
Facebook WhatsApp for Android unspecified ~ v2.21.23 -

II. Public POCs for CVE-2021-24042

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-24042

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Other References for CVE-2021-24042 (1)

IV. Related Vulnerabilities

Same product: WhatsApp Desktop
Same vendor: Facebook
Same weakness: CWE-122

V. Comments for CVE-2021-24042

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