CVE-2021-0555 Null dereference in Android

What is CVE-2021-0555?

CVE-2021-0555 is a high-severity vulnerability in Google Android, published on 22 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In RenderStruct of protostream_objectsource.cc, there is a possible crash due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-179161711

Weakness: CWE-476

Which versions are affected by CVE-2021-0555?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-0555?

Apply the vendor's patch.

Is CVE-2021-0555 being exploited?

There is no known exploitation of CVE-2021-0555 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 A-179161711, GHSA-6pq3-8569-3687, PUB-A-179161711.