CVE-2026-21733

GPU DDK - Incorrect flags validation in RGXDerivePTEProt8 can allow GPU to overwrite read-only shared memory (e.g. libc.so)

State: Published
Severity: 7.3 High
Published: Apr 17, 2026
Updated: Jun 26, 2026
Reserved: Jan 5, 2026

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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.

Scores

CVSS	Score	Vector	Source
3.1	7.3 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L	CISA-ADP

Weaknesses

CWE-280 Improper Handling of Insufficient Permissions or Privileges
CWE-20 Improper Input Validation

Affected Products

Product	Versions
Graphics DDKImagination Technologies	1.18 RTMAffected 23.2 RTMAffected 24.1 RTM through 24.2 RTMAffected 25.1 RTM through 25.3 RTMAffected 26.1 RTMNot affected

References

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

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