CVE-2026-23863
published 2026-05-01CVE-2026-23863: An attachment spoofing issue in WhatsApp for Windows prior to v2.3000.1032164386.258709 could have allowed maliciously formatted documents with embedded NUL…
PriorityP433medium6.5CVSS 3.1
AVNACLPRNUIRSUCNIHAN
EPSS
0.53%
40.6th percentile
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
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| whatsapp_desktop_for_windows | >= 2.3000.*.252500 < 2.3000.1032164386.258709 | 2.3000.1032164386.258709 | |
| < 2.3000.1032164386.258709 | 2.3000.1032164386.258709 |
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VulDB
Facebook WhatsApp Desktop 0.3.3793/0.3.4932/0.3.9309/2.2450.6 on Windows null byte or nul character
vuldb·2026-05-01·CVSS 6.5
CVE-2026-23863 [MEDIUM] Facebook WhatsApp Desktop 0.3.3793/0.3.4932/0.3.9309/2.2450.6 on Windows null byte or nul character
A vulnerability marked as problematic has been reported in Facebook WhatsApp Desktop 0.3.3793/0.3.4932/0.3.9309/2.2450.6 on Windows. This issue affects some unknown processing. The manipulation leads to improper neutralization of null byte or nul character.
This vulnerability is traded as CVE-2026-23863. It is possible to initiate the attack remotely. There is no exploit available.
It is suggested to upgrade the affected component.
GHSA
GHSA-75gp-7gp7-rqpf: An attachment spoofing issue in WhatsApp for Windows prior to v2
ghsa_unreviewed·2026-05-01
CVE-2026-23863 [MEDIUM] CWE-158 GHSA-75gp-7gp7-rqpf: An attachment spoofing issue in WhatsApp for Windows prior to v2
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.
No detection rules found.
No public exploits indexed.
2026-05-01
Published