CVE-2020-1908 Security feature bypass in WhatsApp Business for iOS

What is CVE-2020-1908?

CVE-2020-1908 is a medium-severity vulnerability in Facebook WhatsApp Business for iOS, published on 3 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-552, CWE-285

Which versions are affected by CVE-2020-1908?

It affects 2 products.

Products include Whatsapp Whatsapp, Whatsapp Whatsapp Business.

How do I fix CVE-2020-1908?

No fix has been published for CVE-2020-1908 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-1908 being exploited?

There is no known exploitation of CVE-2020-1908 in the wild and no public exploit code.

Other vulnerabilities in Facebook WhatsApp Business for iOS

• 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-gqf3-x727-h474.