CVE-2021-24043

9.1 criticalEPSS 1.1%

Critical (9.1) in whatsapp. EPSS 1.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.1 critical

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

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 65% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2022-02-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

whatsapp:whatsapp
whatsapp:whatsapp_business

References

https://www.whatsapp.com/security/advisories/2021/
https://www.whatsapp.com/security/advisories/2022/
https://www.whatsapp.com/security/advisories/2021/

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