Vulnerability in Facebook Whatsapp Desktop For Windows

CVE-2025-30401

A spoofing issue in WhatsApp for Windows prior to version 2.2450.6 displayed attachments according to their MIME type but selected the file opening handler based on the attachment’s filename extension. A maliciously crafted mismatch could have caused the recipient to inadvertently execute arbitrary code rather than view the attachment when manually opening the attachment inside WhatsApp. We have not seen evidence of exploitation in the wild.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.210 (97.5th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-30401: rose from 0.188 to 0.210.

EPSS over last 30 days · oldest: 0.188 · newest: 0.210 · change: +0.022

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-30401?
CVE-2025-30401 is a medium-severity vulnerability in Facebook Whatsapp Desktop For Windows, classified under CWE-430. CVSS score: 6.7/10. Published 2025-04-05.
How severe is CVE-2025-30401?
Medium severity. CVSS v3 base score is 6.7 out of 10.
Is CVE-2025-30401 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.