CVE-2026-45198

GPU DDK - RGXFWIF_SYSINIT::sCorememDataStore is untrusted

State: Published
Severity: 7.8 High
Published: Aug 7, 2026
Updated: Aug 7, 2026
Reserved: May 11, 2026

Description

Kernel software from a non-secure operating system on a platform with Trusted Execution Environment support, may cause GPU Firmware to boot up using data from non-secure memory.

The GPU thread of control (Firmware) uses a pointer from non-secure memory belonging to the Rich Execution Environment (REE) when saving or retrieving internal data between the tightly coupled private memory to main memory. An attacker with control over the REE kernel may modify the pointer value, corrupting the data used by the GPU Firmware.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-822 Untrusted Pointer Dereference CWE-501: Trust Boundary Violation

Affected Products

Product	Versions
Graphics DDKImagination Technologies	1.17 RTM2Affected 1.18 RTM2Affected 23.2 RTM2Affected 24.2 RTM2Affected 25.1 RTM2 through 25.3 RTMAffected 26.1 RTM1Affected 26.1 RTM2Not affected

References

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

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