Is CVE-2021-39815 actively exploited?

No active exploitation of CVE-2021-39815 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-39815 be exploited remotely?

Yes. CVE-2021-39815 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-39815?

CVE-2021-39815 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-39815

CRITICAL

CVE-2021-39815

CWE-416Published: August 24, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The PowerVR GPU driver allows unprivileged apps to allocated pinned memory, unpin it (which makes it available to be freed), and continue using the page in GPU calls. No privileges required and this results in kernel memory corruption.Product: AndroidVersions: Android SoCAndroid ID: A-232440670

NVD Source

Risk Analysis

The PowerVR GPU driver in Android is vulnerable to a memory management flaw that allows unprivileged applications to corrupt kernel memory. With a CVSS score of 9.8, this critical vulnerability poses a significant risk as it allows for full system compromise.

There is no known public exploit for this vulnerability, and it is not currently listed in CISA's KEV catalog.

Recommended Action

Users should apply the latest security updates provided by their Android device manufacturer to address this kernel-level vulnerability.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-39815 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.