---
id: CVE-2026-20464
title: >-
  In hevc decoder, there is a possible out of bounds write due to an integer
  overflow
summary: >-
  In hevc decoder, there is a possible out of bounds write due to an integer
  overflow. This could lead to remote escalation of privilege if a malicious
  actor has already obtained the System privilege. User interaction is not
  needed for exp…
severity: none
cwe:
  - CWE-787
published: '2026-08-03'
updated: '2026-08-03'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20464'
references:
  - url: 'https://www.mediatek.com/product-security-bulletin/August-2026'
    label: security@mediatek.com
tags:
  - nvd
ingestedAt: '2026-08-03T03:22:28.150Z'
epss: 0.00497
epssPercentile: 0.39993
---

## Overview

In hevc decoder, there is a possible out of bounds write due to an integer overflow. This could lead to remote escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11104718; Issue ID: MSV-8297.

## Remediation

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