CVE-2026-45197 - Vulnerability Details - OpenCVE

Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest's virtualised GPU memory. The firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Imaginationtech	Graphics Ddk

No data.

No data.

References

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

History

Tue, 08 Sep 2026 15:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 2.5, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 04 Sep 2026 15:30:00 +0000

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

Fri, 04 Sep 2026 02:00:00 +0000

Type	Values Removed	Values Added
Description		Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest's virtualised GPU memory. The firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated.
Title		GPU DDK - TOCTOU affecting psFWMemContext->uiPageCatBaseRegSet
Weaknesses		CWE-367
References		https://www.imaginationtech.com/gpu-driver-vulnerabilities/

MITRE

Status: PUBLISHED

Assigner: imaginationtech

Published: 2026-09-04T01:53:55.981Z

Updated: 2026-09-08T14:29:16.404Z

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

Link: CVE-2026-45197

Vulnrichment

Updated: 2026-09-08T14:29:08.009Z

NVD

Status : Awaiting Analysis

Published: 2026-09-04T02:17:19.003

Modified: 2026-09-08T15:28:33.090

Link: CVE-2026-45197

Redhat

No data.

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