---
id: CVE-2026-20512
title: >-
  In Audio HAL, there is a possible escalation of privilege due to improper
  input validation
summary: >-
  In Audio HAL, there is a possible escalation of privilege due to improper
  input validation. This could lead to local escalation of privilege if a
  malicious actor has already obtained the System privilege. User interaction is
  not needed f…
severity: medium
cvss: 6.7
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-307
vendor: 'MediaTek, Inc.'
product: MediaTek chipset
affected:
  - mediatek_chipset MT2718
  - mediatek_chipset MT6769
  - mediatek_chipset MT6781
  - mediatek_chipset MT6789
  - mediatek_chipset MT6833
  - mediatek_chipset MT6835
  - mediatek_chipset MT6853
  - mediatek_chipset MT6855
  - mediatek_chipset MT6858
  - mediatek_chipset MT6877
  - mediatek_chipset MT6878
  - mediatek_chipset MT6881
  - mediatek_chipset MT6886
  - mediatek_chipset MT6893
  - mediatek_chipset MT6895
  - mediatek_chipset MT6897
  - mediatek_chipset MT6899
  - mediatek_chipset MT6989
  - mediatek_chipset MT6991
  - mediatek_chipset MT6993
  - mediatek_chipset MT8126
  - mediatek_chipset MT8168
  - mediatek_chipset MT8171
  - mediatek_chipset MT8186
  - mediatek_chipset MT8188
  - mediatek_chipset MT8189
  - mediatek_chipset MT8195
  - mediatek_chipset MT8196
  - mediatek_chipset MT8321
  - mediatek_chipset MT8365
  - mediatek_chipset MT8367
  - mediatek_chipset MT8385
  - mediatek_chipset MT8390
  - mediatek_chipset MT8391
  - mediatek_chipset MT8668
  - mediatek_chipset MT8676
  - mediatek_chipset MT8678
  - mediatek_chipset MT8696
  - mediatek_chipset MT8755
  - mediatek_chipset MT8766
  - mediatek_chipset MT8768
  - mediatek_chipset MT8771
  - mediatek_chipset MT8775
  - mediatek_chipset MT8781
  - mediatek_chipset MT8786
  - mediatek_chipset MT8788E
  - mediatek_chipset MT8791T
  - mediatek_chipset MT8792
  - mediatek_chipset MT8793
  - mediatek_chipset MT8796
published: '2026-09-07'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T18:37:41.047'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20512'
references:
  - url: 'https://www.mediatek.com/product-security-bulletin/September-2026'
    label: security@mediatek.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-08T03:55:20.668805Z'
epss: 0.00108
epssPercentile: 0.01088
ingestedAt: '2026-09-07T12:10:16.202Z'
---

## Overview

In Audio HAL, there is a possible escalation of privilege due to improper input validation. 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: ALPS11087540; Issue ID: MSV-8246.

## Remediation

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