CVE-2020-1909

CRITICAL

WhatsApp and WhatsApp Business < 2.20.111 - Use-After-Free via Animated Sticker Handling

Title source: llm

Description

A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to v2.20.111 could have resulted in memory corruption, crashes and potentially code execution. This could have happened only if several events occurred together in sequence, including receiving an animated sticker while placing a WhatsApp video call on hold.

References (1)

Core 1

Core References

Vendor Advisory x_refsource_confirm

https://www.whatsapp.com/security/advisories/2020/

Scores

CVSS v3 9.8

EPSS 0.0225

EPSS Percentile 80.8%

Attack Vector NETWORK

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

Details

CWE

CWE-416

Status published

Products (2)

whatsapp/whatsapp < 2.20.111

whatsapp/whatsapp_business < 2.20.111

Published Nov 03, 2020

Tracked Since Feb 18, 2026