CVE-2021-0698

Local kernel-heap disclosure via uninitialized heap details

Published Aug 24, 2022 · Updated Aug 3, 2024

Information disclosure in the PowerVR GPU driver for Android SoC allows local users to read kernel heap content without user interaction. PVRSRVBridgeHeapCfgHeapDetails returns heap-configuration details containing uninitialized bytes, exposing residual kernel heap data to the caller. Exploitation requires local low-privileged code on a device containing the affected PowerVR driver; no integrity or availability impact is reported.

CVSS severity5.5
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in the PowerVR GPU driver for Android SoC allows local users to read kernel heap content without user interaction. PVRSRVBridgeHeapCfgHeapDetails returns heap-configuration details containing uninitialized bytes, exposing residual kernel heap data to the caller. Exploitation requires local low-privileged code on a device containing the affected PowerVR driver; no integrity or availability impact is reported.

The record

CVE
CVE-2021-0698
Published
Aug 24, 2022
Updated
Aug 3, 2024
Vendor
Imagination Technologies
Product
PowerVR GPU
Classifications
T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 24, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Android SoC

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Imagination Technologies · PowerVR GPUversion=Android SoC

Published CVSS scores

5.5INCIBE-CERTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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