CVE-2026-20481

Analyzed Analyzed - Analysis Complete

Out of Bounds Write in GenieZone

Publication date: 2026-08-03

Last updated on: 2026-08-19

Assigner: MediaTek, Inc.

Description

In geniezone, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10965373; Issue ID: MSV-6935.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-03

Last Modified

2026-08-19

Generated

2026-08-23

AI Q&A

2026-08-03

EPSS Evaluated

2026-08-22

NVD

CVE-2026-20481

EUVD

EUVD-2026-52071

Affected Vendors & Products

Vendor	Product	Version / Range
mediatek	mt6989_firmware	*
mediatek	mt8755_firmware	*
mediatek	mt8768_firmware	*
mediatek	mt8771_firmware	*
mediatek	mt8775_firmware	*
mediatek	mt8781_firmware	*
mediatek	mt8791t_firmware	*
mediatek	mt8792_firmware	*
mediatek	mt8793_firmware	*
mediatek	mt8796_firmware	*
mediatek	mt8797_firmware	*
mediatek	mt8798_firmware	*
mediatek	mt8799_firmware	*
mediatek	mt8910_firmware	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is in geniezone, where a missing bounds check allows an out of bounds write. This could enable local privilege escalation if an attacker already has System privilege access. Exploitation does not require user interaction.

Detection Guidance

This vulnerability requires specific knowledge of the geniezone environment and may not have generic detection commands. Since it involves a missing bounds check leading to out-of-bounds write, manual code review or vendor-specific tools for Mediatek's geniezone would be necessary. Check for unusual privilege escalation events or system crashes in privileged processes.

Impact Analysis

If you are using geniezone, an attacker with System privilege could exploit this to escalate their privileges locally. This may allow them to gain deeper control over the system, potentially accessing sensitive data or performing unauthorized actions.

Compliance Impact

The provided CVE data does not specify any direct impact on compliance with standards like GDPR or HIPAA. The vulnerability involves a local privilege escalation in geniezone due to a missing bounds check, which requires prior System privilege access. Without additional context on data handling or exposure, its compliance impact remains unclear.

Mitigation Strategies

Apply the patch provided by MediaTek with Patch ID ALPS10965373 to address the missing bounds check in geniezone. Ensure the System privilege is properly restricted to prevent local escalation of privilege.

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