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CVE-2026-23863

Quick assessment

Affected
Facebook WhatsApp Desktop for 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.

Facebook WhatsApp是美国Facebook公司的一套基于Android平台的、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。 Facebook WhatsApp 2.3000.1032164386.258709之前版本存在安全漏洞，该漏洞源于附件欺骗问题，可能导致恶意格式化的文档在文件名中嵌入NUL字节，在应用程序中显示为一种文件类型，但打开时作为可执行文件运行。

CVSS 6.5 · Medium EPSS 0.53% · P43

Affected Version Matrix 1

VendorProduct Version RangeStatus
Facebook WhatsApp Desktop for Windows 2.3000.*.252500< 2.3000.1032164386.258709 affected
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I. Basic Information for CVE-2026-23863

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An attachment spoofing issue in WhatsApp for Windows prior to v2.3000.1032164386.258709 could have allowed maliciously formatted documents with embedded NUL bytes in the filename to be shown in the application as one type of file but run as an executable when opened. We have not seen evidence of exploitation in the wild.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Facebook WhatsApp 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Facebook WhatsApp是美国Facebook公司的一套基于Android平台的、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。 Facebook WhatsApp 2.3000.1032164386.258709之前版本存在安全漏洞，该漏洞源于附件欺骗问题，可能导致恶意格式化的文档在文件名中嵌入NUL字节，在应用程序中显示为一种文件类型，但打开时作为可执行文件运行。
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 for Windows 2.3000.*.252500 ~ 2.3000.1032164386.258709 -

II. Public POCs for CVE-2026-23863

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III. Intelligence Information for CVE-2026-23863

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Vendor Advisories for CVE-2026-23863 (2)

IV. Related Vulnerabilities

Same product: WhatsApp Desktop for Windows
Same vendor: Facebook

V. Comments for CVE-2026-23863

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