CVE-2026-21736— GPU DDK - Insufficient permission check in PhysmemWrapExtMem() when write attribute support enabled
Quick assessment
Affected
Imagination Technologies Graphics DDK
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Imagination Graphics DDK是英国Imagination公司的一款GPU驱动工具套件。 Imagination Graphics DDK存在安全漏洞，该漏洞源于对用户模式包装内存资源的保护处理不当，可能导致非特权用户通过不当GPU系统调用获得对只读包装内存的写入权限。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2026-21736
Vulnerability Information
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Vulnerability Title
GPU DDK - Insufficient permission check in PhysmemWrapExtMem() when write attribute support enabled
Source: CVE Program / CVE List V5
Vulnerability Description
Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory.
This is caused by improper handling of the memory protections for the user-mode wrapped memory resource.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不充分权限或特权的处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Imagination Graphics DDK 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Imagination Graphics DDK是英国Imagination公司的一款GPU驱动工具套件。 Imagination Graphics DDK存在安全漏洞，该漏洞源于对用户模式包装内存资源的保护处理不当，可能导致非特权用户通过不当GPU系统调用获得对只读包装内存的写入权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Imagination Technologies | Graphics DDK | 1.17 RTM | - |
|
II. Public POCs for CVE-2026-21736
| # | POC Description | Source Link | Shenlong Link |
|---|
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News Coverage for CVE-2026-21736 (1)
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V. Comments for CVE-2026-21736
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