---
id: CVE-2026-20535
title: >-
  In aidl, there is a possible escalation of privilege due to a missing
  permission check
summary: >-
  In aidl, there is a possible escalation of privilege due to a missing
  permission 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 e…
severity: none
cwe:
  - CWE-862
vendor: 'MediaTek, Inc.'
product: MediaTek chipset
affected:
  - mediatek_chipset MT6878
  - mediatek_chipset MT6881
  - mediatek_chipset MT6899
  - mediatek_chipset MT6989
  - mediatek_chipset MT6991
  - mediatek_chipset MT6993
  - mediatek_chipset MT8188
  - mediatek_chipset MT8189
  - mediatek_chipset MT8668
  - mediatek_chipset MT8781
  - mediatek_chipset MT8793
  - mediatek_chipset MT8910
published: '2026-10-05'
updated: '2026-10-05'
sourceUpdated: '2026-10-05T02:16:52.393'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20535'
references:
  - url: 'https://www.mediatek.com/product-security-bulletin/October-2026'
    label: security@mediatek.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-05T02:10:36.187Z'
---

## Overview

In aidl, there is a possible escalation of privilege due to a missing permission 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: ALPS11185216; Issue ID: MSV-9039.

## Remediation

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