CVE-2020-1907: WhatsApp

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

A stack overflow in WhatsApp for Android prior to v2.20.196.16, WhatsApp Business for Android prior to v2.20.196.12, WhatsApp for iOS prior to v2.20.90, WhatsApp Business for iOS prior to v2.20.90, and WhatsApp for Portal prior to v173.0.0.29.505 could have allowed arbitrary code execution when parsing the contents of an RTP Extension header.

Affected products

• WhatsApp WhatsApp: before 2.20.90 (fixed in 2.20.90); before 2.20.196.16 (fixed in 2.20.196.16); before 173.0.0.29.505 (fixed in 173.0.0.29.505)
• WhatsApp WhatsApp Business: before 2.20.90 (fixed in 2.20.90); before 2.20.196.12 (fixed in 2.20.196.12)

Published 2020-10-06. Last modified 2026-06-17.