CVE-2026-23863 Other in WhatsApp Desktop for Windows
Attackers can trick users into executing malicious files disguised as safe documents via filename spoofing in WhatsApp Desktop.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-23863?
CVE-2026-23863 is a medium-severity vulnerability in Facebook WhatsApp Desktop for Windows, published on 1 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-158
Which versions are affected by CVE-2026-23863?
It affects 1 product.
Products include Whatsapp Whatsapp.
How do I fix CVE-2026-23863?
No fix has been published for CVE-2026-23863 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-23863 being exploited?
There is no known exploitation of CVE-2026-23863 in the wild and no public exploit code.
Other vulnerabilities in Facebook WhatsApp Desktop for Windows
Sources
Also known as GHSA-75gp-7gp7-rqpf.