CVE-2021-24043 - CVE House
Back to Database
Status published Critical CVE-2021-24043

A missing bound check in RTCP flag parsing code prior...

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-24043

Credits & Attribution

No credits recorded in the NVD database.

References

More from whatsapp

View All →
CVE-2020-20096
Whatsapp iOS 2.19.80 and prior and Android 2.19.222 and prior...
Medium 6.5
CVE-2017-8769
Facebook WhatsApp Messenger before 2.16.323 for Android uses the SD...
Medium 4.6

Affected Vendor

Affected Software

whatsapp, whatsapp business
Vulnerable Versions:
2.21.23.2, 2.21.230.6, 2.2145.0, 2.21.230.7

Timeline

Official Publish: February 2nd, 2022
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.