CVE-2021-0301

Local privilege escalation via GED bounds omission

Published Jan 11, 2021 · Updated Aug 3, 2024

GPU Extension Device (GED) in MediaTek Android SoC allows local users with System privileges to escalate privileges through a crafted local interaction. The GED kernel driver writes beyond a memory buffer because a bounds check is missing, corrupting kernel memory. Exploitation requires existing System execution privileges and no user interaction; consequences include elevation of privilege with potential confidentiality, integrity, and availability impact.

CVSS severity6.7
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

GPU Extension Device (GED) in MediaTek Android SoC allows local users with System privileges to escalate privileges through a crafted local interaction. The GED kernel driver writes beyond a memory buffer because a bounds check is missing, corrupting kernel memory. Exploitation requires existing System execution privileges and no user interaction; consequences include elevation of privilege with potential confidentiality, integrity, and availability impact.

The record

CVE
CVE-2021-0301
Published
Jan 11, 2021
Updated
Aug 3, 2024
Vendor
MediaTek
Product
GPU Extension Device (GED)
Classifications
CWE-787, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jan 11, 2021CVE 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 privilegesadmin

What is affected?

MediaTek · GPU Extension Device (GED)version=Android SoC

Published CVSS scores

4.6NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
6.7NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1068Exploitation 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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