CVE Catalog

CVE-2026-23863

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.53%

45th percentile - higher than 45% of all known CVEs

Summary

WhatsApp for Windows prior to v2.3000.1032164386.258709 has an attachment spoofing issue. Maliciously formatted documents with embedded NUL bytes in the filename could be shown as one file type but run as an executable when opened. No evidence of exploitation in the wild has been seen.

Risk Assessment

A user could be tricked into running an executable believing it is a document, potentially leading to infection. No active exploitation is reported, but the risk remains.

Recommendation

Update WhatsApp for Windows to version 2.3000.1032164386.258709 or later. Educate users to be cautious when opening attachments from unknown sources.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS