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CRITICAL · 9.1

CVE-2021-24043

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, ...

Vulnerability 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.

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
WhatsappWhatsapp2.21.23.2
WhatsappWhatsapp Business2.21.23.2

Related Weaknesses (CWE)

CWE-125

References

FAQ

What is CVE-2021-24043?

CVE-2021-24043 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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, ...

How severe is CVE-2021-24043?

CVE-2021-24043 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-24043?

Check the references section above for vendor advisories and patch information. Affected products include: Whatsapp Whatsapp, Whatsapp Whatsapp Business.