CVE-2026-21733 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.imaginationtech.com/gpu-driver-vulnerabilities/

History

Fri, 17 Apr 2026 18:15:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 17 Apr 2026 16:30:00 +0000

Type	Values Removed	Values Added
Description		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.
Title		GPU DDK - Incorrect flags validation in RGXDerivePTEProt8 can allow GPU to overwrite read-only shared memory (e.g. libc.so)
Weaknesses		CWE-280
References		https://www.imaginationtech.com/gpu-driver-vulnerabilities/

Projects

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MITRE

Status: PUBLISHED

Assigner: imaginationtech

Published: 2026-04-17T16:08:25.661Z

Updated: 2026-04-17T17:20:54.424Z

Reserved: 2026-01-05T11:57:27.258Z

Link: CVE-2026-21733

Vulnrichment

Updated: 2026-04-17T17:19:31.532Z

NVD

Status : Awaiting Analysis

Published: 2026-04-17T17:16:35.220

Modified: 2026-04-17T19:01:56.030

Link: CVE-2026-21733

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-280

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