CVE-2021-24042 Information

Description

The calling logic for WhatsApp for Android prior to v2.21.23 WhatsApp Business for Android prior to v2.21.23 WhatsApp for iOS prior to v2.21.230 WhatsApp Business for iOS prior to v2.21.230 WhatsApp for KaiOS prior to v2.2143 WhatsApp Desktop prior to v2.2146 could have allowed an out-of-bounds write if a user makes a 1:1 call to a malicious actor.

CVSS Vector

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

Reference

https://www.whatsapp.com/security/advisories/2021/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8