CVE-2020-1886 Memory corruption in WhatsApp Business for Android

What is CVE-2020-1886?

CVE-2020-1886 is a high-severity memory corruption vulnerability in Facebook WhatsApp Business for Android, published on 3 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A buffer overflow in WhatsApp for Android prior to v2.20.11 and WhatsApp Business for Android prior to v2.20.2 could have allowed an out-of-bounds write via a specially crafted video stream after receiving and answering a malicious video call.

Weakness: CWE-787, CWE-120

Which versions are affected by CVE-2020-1886?

It affects 2 products.

Products include Whatsapp Whatsapp, Whatsapp Whatsapp Business.

How do I fix CVE-2020-1886?

No fix has been published for CVE-2020-1886 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-2020-1886 being exploited?

There is no known exploitation of CVE-2020-1886 in the wild and no public exploit code.

Other vulnerabilities in Facebook WhatsApp Business for Android

• CVE-2019-3568 WhatsApp VOIP Stack Buffer Overflow Exploited Critical 9.8
• CVE-2019-18426 WhatsApp Cross-Site Scripting Exploited High 8.2
• CVE-2025-55177 Meta Platforms WhatsApp Incorrect Authorization Exploited Medium 5.4
• CVE-2022-36934 Integer overflow in WhatsApp Business for Android Critical 9.8
• CVE-2021-24042 Memory corruption in WhatsApp Business for Android Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-m346-7x4h-3r6w.