CVE-2026-20488

Analyzed Analyzed - Analysis Complete

Information Disclosure in MediaTek Display Driver

Publication date: 2026-08-03

Last updated on: 2026-08-19

Assigner: MediaTek, Inc.

Description

In display, there is a possible information disclosure 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: ALPS11004276; Issue ID: MSV-7757.

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-20488

EUVD

EUVD-2026-52078

Affected Vendors & Products

Vendor	Product	Version / Range
mediatek	mt6991_firmware	*
mediatek	mt6993_firmware	*
mediatek	mt8126_firmware	*
mediatek	mt8171_firmware	*
mediatek	mt8188_firmware	*
mediatek	mt8189_firmware	*
mediatek	mt8367_firmware	*
mediatek	mt8668_firmware	*
mediatek	mt8676_firmware	*
mediatek	mt8678_firmware	*
mediatek	mt8766_firmware	*
mediatek	mt8768_firmware	*
mediatek	mt8781_firmware	*
mediatek	mt8786_firmware	*
mediatek	mt8791t_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 is a local information disclosure vulnerability caused by a missing bounds check in the display component. It requires the attacker to already have System privilege access. Exploitation does not need user interaction.

Detection Guidance

This vulnerability requires System privilege access for exploitation and is specific to Mediatek display components. Detection may involve checking for unauthorized access patterns or system logs related to display operations. No specific commands are provided in the available context.

Impact Analysis

If exploited, this vulnerability could allow an attacker with System privilege to disclose local information on the affected device. This may include sensitive data stored or processed by the system.

Compliance Impact

This vulnerability could lead to local information disclosure if an attacker has System privilege, which may result in unauthorized access to sensitive data. This could potentially violate compliance requirements under GDPR (data protection) and HIPAA (health information privacy) by exposing personal or protected data.

Mitigation Strategies

Apply the patch identified as ALPS11004276 to address the missing bounds check in the display component. Ensure the System privilege is properly restricted to prevent local exploitation.

Hi! I’m here to help you understand CVE-2026-20488. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70