CVE-2026-23863

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score

6.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N                                    

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.

Vulnerability Details

Published Date

May 01, 2026

Last Modified

May 04, 2026

CWE ID

CWE-158

Source

NVD

Vendor

Facebook

Product

WhatsApp Desktop for Windows

External References

https://www.facebook.com/security/advisories/cve-2026-23863
https://www.whatsapp.com/security/advisories/2026

CVE-2026-23863

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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