CVE-2021-24042

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.

Categories

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.52%
Vendor Advisory whatsapp.com
Affected: Facebook WhatsApp Desktop
Affected: Facebook WhatsApp for KaiOS
Affected: Facebook WhatsApp Business for iOS
Affected: Facebook WhatsApp for iOS
Affected: Facebook WhatsApp Business for Android
Affected: Facebook WhatsApp for Android
Published at:
Updated at:

References

Link Tags
https://www.whatsapp.com/security/advisories/2021/ not applicable vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-24042?
CVE-2021-24042 has been scored as a critical severity vulnerability.
How to fix CVE-2021-24042?
To fix CVE-2021-24042, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24042 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-24042 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24042?
CVE-2021-24042 affects Facebook WhatsApp Desktop, Facebook WhatsApp for KaiOS, Facebook WhatsApp Business for iOS, Facebook WhatsApp for iOS, Facebook WhatsApp Business for Android, Facebook WhatsApp for Android.
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