CVE-2021-24026 Memory corruption in WhatsApp Business for Android
A missing bounds check in WhatsApp's audio decoding allows out-of-bounds writes, potentially enabling remote code execution on Android and iOS devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-24026?
CVE-2021-24026 is a critical memory corruption vulnerability in Facebook WhatsApp Business for Android, published on 6 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A missing bounds check within the audio decoding pipeline for WhatsApp calls in WhatsApp for Android prior to v2.21.3, WhatsApp Business for Android prior to v2.21.3, WhatsApp for iOS prior to v2.21.32, and WhatsApp Business for iOS prior to v2.21.32 could have allowed an out-of-bounds write.
Weakness: CWE-787
Which versions are affected by CVE-2021-24026?
It affects 2 products.
Products include Whatsapp Whatsapp, Whatsapp Whatsapp Business.
How do I fix CVE-2021-24026?
No fix has been published for CVE-2021-24026 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-24026 being exploited?
There is no known exploitation of CVE-2021-24026 in the wild and no public exploit code.
Other vulnerabilities in Facebook WhatsApp Business for Android
Sources
Also known as GHSA-36r2-rr2j-2cvx.