CVE-2021-0904 Privilege escalation in MT6771, MT8183, MT8385, MT8788

What is CVE-2021-0904?

CVE-2021-0904 is a medium-severity vulnerability in Google Android, published on 15 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In SRAMROM, there is a possible permission bypass due to an insecure permission setting. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06076938; Issue ID: ALPS06076938.

Weakness: CWE-732

Which versions are affected by CVE-2021-0904?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-0904?

Apply the vendor's patch.

Is CVE-2021-0904 being exploited?

There is no known exploitation of CVE-2021-0904 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-201779035, ASB-A-201779035, GHSA-pf4w-mhjv-g5wm, M-ALPS06076938.