GPU DDK - Unsafe writing of MMU PT entries on systems with 32-bit host CPU

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Summary

CVECVE-2026-22163
StatePUBLISHED
Assignerimaginationtech
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-20 23:16:42 UTC
Updated2026-04-21 16:53:35 UTC
DescriptionRequires malware code to misuse the DDK kernel module IOCTL interface. Such code can use the interface in an unsupported way that allows subversion of the GPU to perform writes to arbitrary physical memory pages. The product utilises a shared resource in a concurrent manner but does not attempt to synchronise access to the resource.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from ADP

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.000150000 probability, percentile 0.032030000 (date 2026-04-22)

Problem Types: CWE-820 | CWE-820 CWE-820: Missing Synchronization (4.19)

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.8HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.8HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Imaginationtech Ddk 1.17 All All All
Application Imaginationtech Ddk 1.18 All All All
Application Imaginationtech Ddk 23.2 All All All
Application Imaginationtech Ddk 24.1 All All All
Application Imaginationtech Ddk 24.2 All All All
Application Imaginationtech Ddk All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Imagination Technologies Graphics DDK affected 1.17 RTM custom Linux, Android
CNA Imagination Technologies Graphics DDK affected 1.18 RTM custom Linux, Android
CNA Imagination Technologies Graphics DDK affected 23.2 RTM custom Linux, Android
CNA Imagination Technologies Graphics DDK affected 24.1 RTM 24.2 RTM custom Linux, Android
CNA Imagination Technologies Graphics DDK affected 25.1 RTM 25.3 RTM custom Linux, Android
CNA Imagination Technologies Graphics DDK unaffected 26.1 RTM custom Linux, Android

References

ReferenceSourceLinkTags
www.imaginationtech.com/gpu-driver-vulnerabilities 367425dc-4d06-4041-9650-c2dc6aaa27ce www.imaginationtech.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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