CVE-2021-0946 Information disclosure in Android

What is CVE-2021-0946?

CVE-2021-0946 is a high-severity vulnerability in Google Android, published on 24 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The method PVRSRVBridgePMRPDumpSymbolicAddr allocates puiMemspaceNameInt on the heap, fills the contents of the buffer via PMR_PDumpSymbolicAddr, and then copies the buffer to userspace. The method PMR_PDumpSymbolicAddr may fail, and if it does the buffer will be left uninitialized and despite the error will still be copied to userspace. Kernel leak of uninitialized heap data with no privs required.Product: AndroidVersions: Android SoCAndroid ID: A-236846966

Weakness: CWE-909

Which versions are affected by CVE-2021-0946?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-0946?

Apply the vendor's patch.

Is CVE-2021-0946 being exploited?

There is no known exploitation of CVE-2021-0946 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-236846966, ASB-A-236846966, GHSA-cp4c-qjgv-3j5v.