CVE-2019-3566 Information disclosure in WhatsApp Business for Android

What is CVE-2019-3566?

CVE-2019-3566 is a medium-severity vulnerability in Facebook WhatsApp Business for Android, published on 10 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A bug in WhatsApp for Android's messaging logic would potentially allow a malicious individual who has taken over over a WhatsApp user's account to recover previously sent messages. This behavior requires independent knowledge of metadata for previous messages, which are not available publicly. This issue affects WhatsApp for Android 2.19.52 and 2.19.54 - 2.19.103, as well as WhatsApp Business for Android starting in v2.19.22 until v2.19.38.

Weakness: CWE-284

Which versions are affected by CVE-2019-3566?

It affects 2 products.

Products include Whatsapp Whatsapp, Whatsapp Whatsapp Business.

How do I fix CVE-2019-3566?

No fix has been published for CVE-2019-3566 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-3566 being exploited?

There is no known exploitation of CVE-2019-3566 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-9vw8-5c3c-w435.