CVE-2026-22163 | GPU DDK - Unsafe writing of MMU PT entries on systems with 32-bit host CPU

Requires 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.

Published: 2026-03-20 Last update: 2026-04-21 Assigner: 367425dc-4d06-4041-9650-c2dc6aaa27ce Source: 367425dc-4d06-4041-9650-c2dc6aaa27ce
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-22163 is rated Low Risk (31.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.08%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-22163

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.02% 0.08% +0.06%
2 2026-03-21 — 0.02% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-22163

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.1 6.0 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2026-22163

Affected software / configurations for CVE-2026-22163

Vendor Product Version Raw CPE
imaginationtech ddk >= 25.1, <= 25.3 cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:*
imaginationtech ddk 1.17 cpe:2.3:a:imaginationtech:ddk:1.17:*:*:*:*:*:*:*
imaginationtech ddk 1.18 cpe:2.3:a:imaginationtech:ddk:1.18:*:*:*:*:*:*:*
imaginationtech ddk 23.2 cpe:2.3:a:imaginationtech:ddk:23.2:*:*:*:*:*:*:*
imaginationtech ddk 24.1 cpe:2.3:a:imaginationtech:ddk:24.1:*:*:*:*:*:*:*
imaginationtech ddk 24.2 cpe:2.3:a:imaginationtech:ddk:24.2:*:*:*:*:*:*:*

References for CVE-2026-22163

cvelogic Threat Intelligence