---
id: CVE-2026-21733
title: >-
  Software installed and run as a non-privileged user may conduct improper GPU
  system calls to gain write permission to read-only wrapped user-mode memory
  and files.




  This is caused by improper handling of GPU memory reservation protecti…
summary: >-
  Software installed and run as a non-privileged user may conduct improper GPU
  system calls to gain write permission to read-only wrapped user-mode memory
  and files.




  This is caused by improper handling of GPU memory reservation protecti…
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L'
cwe:
  - CWE-280
  - CWE-20
published: '2026-04-17'
updated: '2026-06-26'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-21733'
references:
  - url: 'https://www.imaginationtech.com/gpu-driver-vulnerabilities/'
    label: 367425dc-4d06-4041-9650-c2dc6aaa27ce
tags:
  - nvd
epss: 0.00099
epssPercentile: 0.009
ingestedAt: '2026-06-26T16:43:13.628Z'
---

## Overview

Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory and files.



This is caused by improper handling of GPU memory reservation protections.

## Remediation

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