CVE-2019-3568

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.

Affected

Facebook · WhatsApp for Android · WhatsApp Business for Android · WhatsApp for iOS · WhatsApp Business for iOS · WhatsApp for Windows Phone · WhatsApp for Tizen

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

30.08% chance of exploitation in the next 30 days, 98th percentile

CISA KEV

added 2022-04-19

Published

2019-05-14

Updated

2025-10-21

Proof-of-concept exploits (1)

• bevijaygupta/Vapor1★ · 2026-09-26

Security advisories

• http://www.securityfocus.com/bid/108329
• https://www.facebook.com/security/advisories/cve-2019-3568

References

• CVE Record
• NVD entry