---
id: CVE-2026-20559
title: 'In GPU pdma, there is a possible memory corruption due to use after free'
summary: >-
  In GPU pdma, there is a possible memory corruption due to use after free. This
  could lead to local escalation of privilege with User execution privileges
  needed. User interaction is not needed for exploitation. Patch ID:
  ALPS11365081; Is…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: adp
cwe:
  - CWE-416
vendor: 'MediaTek, Inc.'
product: MediaTek chipset
affected:
  - mediatek_chipset MT6993
  - mediatek_chipset MT8910
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-02T00:00:00+00:00'
published: '2026-11-02'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T04:55:33.731Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-20559'
references:
  - url: 'https://www.mediatek.com/product-security-bulletin/November-2026'
tags:
  - cve.org
epss: 0.00134
epssPercentile: 0.02959
ingestedAt: '2026-11-05T19:30:42.896Z'
---

## Overview

In GPU pdma, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11365081; Issue ID: MSV-9545.

## Affected

- `mediatek_chipset MT6993`
- `mediatek_chipset MT8910`

## Remediation

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