WhatsApp VOIP Stack Buffer Overflow Vulnerability

Added to KEV
2022-04-19
Federal due date
2022-05-10
Vendor
Meta Platforms
Product
WhatsApp
EPSS
97.8th percentile (score 0.474, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2019-3568

CISA short description

A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via specially crafted series of RTCP packets sent to a target phone number.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.