CVE-2019-3568

CRITICAL9.8

CISA KEV

Published 2019-05-14 · Updated 2026-06-17 · Source cve-assign@fb.com

Summary

CVE-2019-3568 is a critical-severity (CVSS 9.8) vulnerability in Meta Platforms WhatsApp. CISA added it to the Known Exploited Vulnerabilities catalog on April 19, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 10, 2022. CISA does not currently list it as used in ransomware campaigns. Meta Platforms has 3 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 3 known-exploited Meta Platforms vulnerabilities →

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. The issue affects WhatsApp for Android prior to v2.19.134, WhatsApp Business for Android prior to v2.19.44, WhatsApp for iOS prior to v2.19.51, WhatsApp Business for iOS prior to v2.19.51, WhatsApp for Windows Phone prior to v2.18.348, and WhatsApp for Tizen prior to v2.18.15.

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

CWE-122CWE-787

CISA Known-Exploited Vulnerability

Product: Meta Platforms — WhatsApp

Name: WhatsApp VOIP Stack Buffer Overflow Vulnerability

Date added: 2022-04-19 · Due: 2022-05-10

Required action: Apply updates per vendor instructions.

References

View on NVD

More exploited Meta Platforms vulnerabilities

Most recently added to CISA KEV

CVE-2025-55177
WhatsApp — Meta Platforms WhatsApp Incorrect Authorization Vulnerability
added 2025-09-02
CVE-2019-18426
WhatsApp — WhatsApp Cross-Site Scripting Vulnerability
added 2022-05-23

View all →

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