CVE-2026-20567
Received Received - Intake

Out of Bounds Write in MediaTek System Component

Publication date: 2026-11-02

Last updated on: 2026-11-02

Assigner: MediaTek, Inc.

Description
In afe, 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: ALPS11431394; Issue ID: MSV-10004.

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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
CVE-2026-20567

Affected Vendors & Products

Showing 40 associated CPEs
Vendor Product Version / Range
MediaTek, Inc. MediaTek chipset MT6739
MediaTek, Inc. MediaTek chipset MT6765
MediaTek, Inc. MediaTek chipset MT6768
MediaTek, Inc. MediaTek chipset MT6769
MediaTek, Inc. MediaTek chipset MT6781
MediaTek, Inc. MediaTek chipset MT6789
MediaTek, Inc. MediaTek chipset MT6835
MediaTek, Inc. MediaTek chipset MT6853
MediaTek, Inc. MediaTek chipset MT6855
MediaTek, Inc. MediaTek chipset MT6858
MediaTek, Inc. MediaTek chipset MT6877
MediaTek, Inc. MediaTek chipset MT6878
MediaTek, Inc. MediaTek chipset MT6879
MediaTek, Inc. MediaTek chipset MT6881
MediaTek, Inc. MediaTek chipset MT6883
MediaTek, Inc. MediaTek chipset MT6885
MediaTek, Inc. MediaTek chipset MT6886
MediaTek, Inc. MediaTek chipset MT6889
MediaTek, Inc. MediaTek chipset MT6893
MediaTek, Inc. MediaTek chipset MT6895
MediaTek, Inc. MediaTek chipset MT6897
MediaTek, Inc. MediaTek chipset MT6899
MediaTek, Inc. MediaTek chipset MT6983
MediaTek, Inc. MediaTek chipset MT6985
MediaTek, Inc. MediaTek chipset MT6989
MediaTek, Inc. MediaTek chipset MT6991
MediaTek, Inc. MediaTek chipset MT6993
MediaTek, Inc. MediaTek chipset MT8168
MediaTek, Inc. MediaTek chipset MT8186
MediaTek, Inc. MediaTek chipset MT8188
MediaTek, Inc. MediaTek chipset MT8189
MediaTek, Inc. MediaTek chipset MT8195
MediaTek, Inc. MediaTek chipset MT8196
MediaTek, Inc. MediaTek chipset MT8365
MediaTek, Inc. MediaTek chipset MT8367
MediaTek, Inc. MediaTek chipset MT8390
MediaTek, Inc. MediaTek chipset MT8391
MediaTek, Inc. MediaTek chipset MT8668
MediaTek, Inc. MediaTek chipset MT8678
MediaTek, Inc. MediaTek chipset MT8793

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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 an out of bounds write issue in a component called 'afe' due to a missing bounds check. It allows a malicious actor with System privilege to escalate privileges locally without needing user interaction.

Impact Analysis

If exploited, this vulnerability could allow an attacker who already has System privilege to gain higher privileges, potentially leading to full control over the affected system.

Mitigation Strategies

Apply the patch provided by MediaTek (Patch ID: ALPS11431394) to address the missing bounds check in the afe component. Ensure the System privilege is not granted to untrusted actors to prevent local escalation of privilege.

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