CVE-2026-20552
Received Received - Intake

Memory Corruption in MediaTek ccci Driver

Vulnerability report for CVE-2026-20552, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-11-02

Last updated on: 2026-11-02

Assigner: MediaTek, Inc.

Description

In ccci, there is a possible out of bounds write due to a missing bounds check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11523478 (Note: For MT6880, MT6890) / ALPS11297423 (Note: For MT6813, MT6986, MT6982, MT6980D) / AUTO00864897 (Note: For MT2735, MT2737); Issue ID: MSV-10724.

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Meta Information

Published
2026-11-02
Last Modified
2026-11-02
Generated
2026-11-02
AI Q&A
2026-11-02
EPSS Evaluated
N/A
NVD

Helpful Resources

Exploitability

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

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Executive Summary

This vulnerability is in MediaTek's ccci component where a missing bounds check could allow an out of bounds write. This may lead to remote denial of service without needing extra privileges. Exploitation requires user interaction.

Detection Guidance

This vulnerability is specific to MediaTek chipsets and requires user interaction for exploitation. Detection may involve checking for unusual network traffic patterns or crashes in MediaTek-related services. No direct commands are provided in the context.

Impact Analysis

The vulnerability could cause system crashes or unresponsiveness due to denial of service. Since it affects MediaTek chipsets, devices using these chips may be vulnerable if not patched.

Mitigation Strategies

Apply the provided patches (ALPS11523478, ALPS11297423, or AUTO00864897) based on your MediaTek chipset model. Check MediaTek's official documentation for patch availability and installation instructions.

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