Known exploited vulnerability

CVE-2019-3568

WhatsApp VOIP Stack Buffer Overflow Vulnerability

What is affected

Vendor Meta Platforms
Product WhatsApp
Weakness CWE-122

The vulnerability

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.

US federal civilian agencies were required to act by 10 May 2022 under BOD 22-01. The deadline is a compliance date, not a measure of severity — it says nothing about how dangerous the flaw is to anyone else.

Where this comes from

Every field on this page is taken from the CISA Known Exploited Vulnerabilities catalog, last synced 12 Nov 2026, 00:29. Nothing here is our own assessment. For the technical scoring, see the NVD record below.

NVD record ↗ CVE.org record ↗

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