VULNERABILITY INTELLIGENCE

CVE-2021-24043

CVSS score9.1 CRITICAL
EPSS probability1.09%
CISA KEVNot currently listed
Published2022-02-02
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Description

A missing bound check in RTCP flag parsing code prior to WhatsApp for Android v2.21.23.2, WhatsApp Business for Android v2.21.23.2, WhatsApp for iOS v2.21.230.6, WhatsApp Business for iOS 2.21.230.7, and WhatsApp Desktop v2.2145.0 could have allowed an out-of-bounds heap read if a user sent a malformed RTCP packet during an established call.

Weakness classification

  • nvd@nist.gov: CWE-125

Primary references