CVE-2021-39740 Security feature bypass in Android

What is CVE-2021-39740?

CVE-2021-39740 is a medium-severity vulnerability in Google Android, published on 30 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In Messaging, there is a possible way to bypass attachment restrictions due to improper input validation. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-209965112

Weakness: CWE-20

Which versions are affected by CVE-2021-39740?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-39740?

No fix has been published for CVE-2021-39740 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-39740 being exploited?

There is no known exploitation of CVE-2021-39740 in the wild and no public exploit code.

Other vulnerabilities in Google Android

• CVE-2026-58704 Google Pixel Improper Authorization Exploited High 8.8
• CVE-2025-48543 Android Runtime Use-After-Free Exploited High 8.8
• CVE-2023-35674 Android Framework Privilege Escalation Exploited High 8.8
• CVE-2025-48595 Android Framework Integer Overflow Exploited High 8.4
• CVE-2024-32896 Android Pixel Privilege Escalation Exploited High 8.1

All Google Android vulnerabilities

Sources

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

Also known as GHSA-m2hp-89p5-rrf9.