---
id: CVE-2026-20516
title: >-
  In MiracastService, there is a possible escalation of privilege due to a
  confused deputy
summary: >-
  In MiracastService, there is a possible escalation of privilege due to a
  confused deputy. This could lead to local denial of service with User
  execution privileges needed. User interaction is not needed for exploitation.
  Patch ID: ALPS11…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-926
vendor: 'MediaTek, Inc.'
product: MediaTek chipset
affected:
  - mediatek_chipset MT5586
  - mediatek_chipset MT5836
  - mediatek_chipset MT5838
  - mediatek_chipset MT5867
  - mediatek_chipset MT9011
  - mediatek_chipset MT9012
  - mediatek_chipset MT9015
  - mediatek_chipset MT9022
  - mediatek_chipset MT9025
  - mediatek_chipset MT9026
  - mediatek_chipset MT9027
  - mediatek_chipset MT9032
  - mediatek_chipset MT9033
  - mediatek_chipset MT9216
  - mediatek_chipset MT9221
  - mediatek_chipset MT9256
  - mediatek_chipset MT9266
  - mediatek_chipset MT9270
  - mediatek_chipset MT9286
  - mediatek_chipset MT9603
  - mediatek_chipset MT9615
  - mediatek_chipset MT9617
  - mediatek_chipset MT9618
  - mediatek_chipset MT9633
  - mediatek_chipset MT9636
  - mediatek_chipset MT9638
  - mediatek_chipset MT9649
  - mediatek_chipset MT9660
  - mediatek_chipset MT9666
  - mediatek_chipset MT9667
  - mediatek_chipset MT9671
  - mediatek_chipset MT9676
  - mediatek_chipset MT9687
  - mediatek_chipset MT9688
  - mediatek_chipset MT9689
  - mediatek_chipset MT9952
  - mediatek_chipset MT9972
  - mediatek_chipset MT9979
  - mediatek_chipset MT9982
published: '2026-09-07'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T03:16:56.330'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20516'
references:
  - url: 'https://www.mediatek.com/product-security-bulletin/September-2026'
    label: security@mediatek.com
tags:
  - nvd
  - cve.org
  - exploit-available
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-07T10:36:14.560696Z'
epss: 0.00132
epssPercentile: 0.02307
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/Dingo97/CVE-2026-20516'
  checkedAt: '2026-09-27T10:33:41.901Z'
exploitAvailable: true
ingestedAt: '2026-09-07T12:10:16.376Z'
---

## Overview

In MiracastService, there is a possible escalation of privilege due to a confused deputy. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11060069 / DTV04881615; Issue ID: MSV-7882.

## Remediation

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