CVE-2026-20497

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: ALPS10965550 / ALPS11393405; Issue ID: MSV-6941.

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-2026-20497

EUVD

EUVD-2026-52070

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	mt8796_firmware	*
mediatek	mt8797_firmware	*
mediatek	mt8798_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 a possible out of bounds write. This could enable local privilege escalation if an attacker already has System privilege access. No user interaction is required for exploitation.

Detection Guidance

This vulnerability requires local access with System privilege to exploit, so detection should focus on system logs and privilege escalation attempts. Check for unusual activity in kernel logs or privilege-related events. No specific commands are provided in the available context.

Impact Analysis

If exploited, this vulnerability could allow an attacker with existing System privileges to escalate their access further, potentially gaining control over the system. This could lead to unauthorized data access or system modifications.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR, HIPAA, or similar standards as it involves a local privilege escalation in a specific software component (geniezone). Compliance impacts would depend on how the affected system is used within regulated environments, but the CVE itself does not provide details on such implications.

Mitigation Strategies

Apply the provided patches (ALPS10965550 / ALPS11393405) to address the missing bounds check in geniezone. Ensure the System privilege is not granted to untrusted actors to prevent potential exploitation.

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