CVE-2026-45198

GPU DDK - RGXFWIF_SYSINIT::sCorememDataStore is untrusted

Published Aug 7, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Imaginationtech
Imaginationtech graphics Ddk
Vendors & Products Imaginationtech
Imaginationtech graphics Ddk
Type Values Removed Values Added
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.
Title GPU DDK - RGXFWIF_SYSINIT::sCorememDataStore is untrusted
Weaknesses CWE-822
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
imaginationtech
Published
Updated
Aug 7, 2026, 5:56 PM
Reserved
May 11, 2026, 10:58 AM
Status
Deferred
Published
Aug 7, 2026, 3:16 AM
Modified
Oct 23, 2026, 9:10 PM