CVE-2021-0878

Local privilege escalation via unchecked synchronization status size

Published Apr 19, 2023 · Updated Feb 6, 2025

Integer overflow in the PowerVR kernel driver for Android SoC allows local users to elevate privileges through out-of-bounds heap access. PVRSRVBridgeServerSyncGetStatus omits a size check, allowing an integer calculation to wrap and produce an out-of-bounds heap access. A low-privileged local user can trigger the flaw without user interaction and elevate privileges on the affected device.

CVSS severity7.8
High
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in the PowerVR kernel driver for Android SoC allows local users to elevate privileges through out-of-bounds heap access. PVRSRVBridgeServerSyncGetStatus omits a size check, allowing an integer calculation to wrap and produce an out-of-bounds heap access. A low-privileged local user can trigger the flaw without user interaction and elevate privileges on the affected device.

The record

CVE
CVE-2021-0878
Published
Apr 19, 2023
Updated
Feb 6, 2025
Vendor
Imagination Technologies
Product
PowerVR GPU
Classifications
CWE-190, T1404
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 6, 2025Record 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

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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

CWE-190Integer Overflow or Wraparound
T1404Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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