CVE-2026-41157

GPU DDK - OOB Write in CalculateNPOTTwiddleSparsePageMap3D

State: Published
Severity: 9.8 Critical
Published: Jun 12, 2026
Updated: Jun 16, 2026
Reserved: Apr 17, 2026

Description

A web page that contains unusual WebGPU content loaded into the GPU GLES render process and can trigger an out-of-bound write in the GPU user-space driver, leading to memory corruption and possible browser/GPU process crash.

The software computes a required memory size from untrusted input, but integer overflow can produce a value smaller than needed. Subsequent write operations may then occur past the intended memory boundary, corrupting adjacent memory and causing process instability or termination.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
Graphics DDKImagination Technologies	1.18 RTMAffected 23.2 RTMAffected 24.2 RTMAffected 25.1 RTM through 25.3 RTMAffected 26.1 RTMAffected 26.2 RTMNot affected

References

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

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