---
id: CVE-2026-20529
title: >-
  In battery, there is a possible out of bounds write due to a missing bounds
  check
summary: >-
  In battery, 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
  exploi…
severity: none
cwe:
  - CWE-787
vendor: 'MediaTek, Inc.'
product: MediaTek chipset
affected:
  - mediatek_chipset MT6761
  - mediatek_chipset MT6765
  - mediatek_chipset MT6768
  - mediatek_chipset MT6781
  - mediatek_chipset MT6853
  - mediatek_chipset MT6858
  - mediatek_chipset MT6881
  - mediatek_chipset MT6893
  - mediatek_chipset MT6989
  - mediatek_chipset MT6991
  - mediatek_chipset MT6993
  - mediatek_chipset MT8171
  - mediatek_chipset MT8186
  - mediatek_chipset MT8188
  - mediatek_chipset MT8189
  - mediatek_chipset MT8196
  - mediatek_chipset MT8766
  - mediatek_chipset MT8768
  - mediatek_chipset MT8775
  - mediatek_chipset MT8781
  - mediatek_chipset MT8788E
  - mediatek_chipset MT8791T
  - mediatek_chipset MT8792
  - mediatek_chipset MT8796
  - mediatek_chipset MT8799
  - mediatek_chipset MT8883
  - mediatek_chipset MT8893
  - mediatek_chipset MT8910
published: '2026-10-05'
updated: '2026-10-05'
sourceUpdated: '2026-10-05T02:16:51.640'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20529'
references:
  - url: 'https://www.mediatek.com/product-security-bulletin/October-2026'
    label: security@mediatek.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-05T02:10:36.190Z'
---

## Overview

In battery, 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: ALPS11276677; Issue ID: MSV-9217.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.