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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| WhatsApp Desktop for Windows | 2.3000.*.252500 – < 2.3000.1032164386.258709 | 2.3000.1032164386.258709 |
Advisories 1
- WID-SEC-2026-1361 Meta WhatsApp: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 4, 2026