CVE-2020-1908

Severity: medium (CVSS 4.6 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: 2020-11-03 · updated 2026-06-17
Weakness: CWE-285

Description

Improper authorization of the Screen Lock feature in WhatsApp and WhatsApp Business for iOS prior to v2.20.100 could have permitted use of Siri to interact with the WhatsApp application even after the phone was locked.

Affected products

Facebook WhatsApp for Android: before 2.20.100 — fixed in 2.20.100
Whatsapp Business: before 2.20.100 — fixed in 2.20.100

How to fix

Upgrade to a fixed version: Facebook WhatsApp for Android 2.20.100; Whatsapp Business 2.20.100. Check the vendor advisory for mitigations.

References

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

Get alerted when CVE-2020-1908 or the next vulnerability affects your stack