CVE-2020-1906

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-10-06 · updated 2026-06-17
Weakness: CWE-122

Description

A buffer overflow in WhatsApp for Android prior to v2.20.130 and WhatsApp Business for Android prior to v2.20.46 could have allowed an out-of-bounds write when processing malformed local videos with E-AC-3 audio streams.

Affected products

Facebook WhatsApp for Android: before 2.20.130 — fixed in 2.20.130
Whatsapp Business: before 2.20.46 — fixed in 2.20.46

How to fix

Upgrade to a fixed version: Facebook WhatsApp for Android 2.20.130; Whatsapp Business 2.20.46. Check the vendor advisory for mitigations.

References

https://www.whatsapp.com/security/advisories/2020/
https://www.whatsapp.com/security/advisories/2020/

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