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.
Published: 2026-08-07
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability resides in the GPU driver’s use of a pointer from non‑secure Rich Execution Environment memory for core memory storage during firmware initialization. An attacker who controls the REE kernel can alter that pointer, causing the GPU firmware to use attacker‑controlled data. This can corrupt internal firmware data, potentially affecting GPU operation. The weakness is identified as CWE‑822, relating to the use of untrusted pointers.

Affected Systems

Imagination Technologies Graphics DDK is affected. No specific versions are listed, so any installation that contains the referenced firmware component may be vulnerable. The vulnerability applies to systems running a non‑secure operating system on platforms that support a Trusted Execution Environment.

Risk and Exploitability

Based on the description, the likely attack vector is local privileged execution within the Rich Execution Environment. The attack requires control of the REE kernel, therefore it is limited to local privileged contexts. The EPSS score is < 1% and the vulnerability is not listed in the CISA KEV catalogue, indicating no publicly known exploit. The CVSS score of 7.8 denotes high severity. While the explicit capabilities an attacker could gain are not detailed, the fact that the attacker can manipulate firmware data suggests a serious risk in environments where the REE kernel can be compromised.

Generated by OpenCVE AI on August 7, 2026 at 20:30 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Check Imagination Technologies’ website or support portal for firmware updates that correct the untrusted pointer handling in the GPU driver.
  • Apply any available firmware or driver patches that address the pointer manipulation issue.
  • Restrict or isolate the REE kernel’s privileges from critical GPU firmware components to prevent arbitrary pointer modification as a temporary workaround.

Generated by OpenCVE AI on August 7, 2026 at 20:30 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 07 Aug 2026 18:30:00 +0000

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'}


Fri, 07 Aug 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Imaginationtech
Imaginationtech graphics Ddk
Vendors & Products Imaginationtech
Imaginationtech graphics Ddk

Fri, 07 Aug 2026 02:30:00 +0000

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

Subscriptions

Imaginationtech Graphics Ddk
cve-icon MITRE

Status: PUBLISHED

Assigner: imaginationtech

Published:

Updated: 2026-08-07T17:56:07.311Z

Reserved: 2026-05-11T10:58:04.162Z

Link: CVE-2026-45198

cve-icon Vulnrichment

Updated: 2026-08-07T17:56:00.532Z

cve-icon NVD

Status : Received

Published: 2026-08-07T03:16:19.810

Modified: 2026-08-07T18:17:14.827

Link: CVE-2026-45198

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-07T20:45:03Z

Weaknesses
  • CWE-822

    Untrusted Pointer Dereference