CVE-2026-20496

Analyzed Analyzed - Analysis Complete

Out of Bounds Read in GenieZone Due to Missing Bounds Check

Publication date: 2026-08-03

Last updated on: 2026-08-19

Assigner: MediaTek, Inc.

Description

In geniezone, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11036877; Issue ID: MSV-7132.

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-2026-20496

EUVD

EUVD-2026-52086

Affected Vendors & Products

Vendor	Product	Version / Range
mediatek	mt6983_firmware	*
mediatek	mt8676_firmware	*
mediatek	mt8678_firmware	*
mediatek	mt8755_firmware	*
mediatek	mt8768_firmware	*
mediatek	mt8771_firmware	*
mediatek	mt8775_firmware	*
mediatek	mt8781_firmware	*
mediatek	mt8786_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-125	The product reads 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 leads to a possible out of bounds read. This could allow local information disclosure if an attacker already has System privilege. Exploitation does not require user interaction.

Detection Guidance

Detection of CVE-2026-20496 requires checking for the presence of the vulnerable geniezone component and verifying if the patch ALPS11036877 has been applied. Since this is a local privilege escalation issue, commands would focus on system inspection rather than network scanning.

Impact Analysis

If exploited, this vulnerability could allow an attacker with System privilege to read sensitive local information. This may include data stored on the device or system-level secrets.

Compliance Impact

This vulnerability could lead to local information disclosure if exploited by a malicious actor with System privilege. This may impact compliance with standards requiring data confidentiality, such as GDPR or HIPAA, by potentially exposing sensitive information.

Mitigation Strategies

Apply the patch identified as ALPS11036877 to address the missing bounds check in geniezone. Ensure System privilege access is restricted to prevent exploitation.

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