GPU DDK - Unsafe writing of MMU PT entries on systems with 32-bit host CPU
Priority LOW 35CWE-820Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00085 0th percentileScored 2026-11-07
Fix Fixed Graphics DDK (Imagination Technologies): 26.1 RTM
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Imagination Technologies | Graphics DDK | 1.17 RTM; 1.18 RTM; 23.2 RTM; 24.1 RTM – 24.2 RTM; 25.1 RTM – 25.3 RTM | 26.1 RTM | Patch available | CNA |
- Graphics DDK VendorImagination Technologies Affected 1.17 RTM; 1.18 RTM; 23.2 RTM; 24.1 RTM – 24.2 RTM; 25.1 RTM – 25.3 RTM Fixed in 26.1 RTM Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:* | 25.1 – 25.3 | Vulnerable | Imagination Technologies |
| cpe:2.3:a:imaginationtech:ddk:1.17:*:*:*:*:*:*:* | 1.17 | Vulnerable | Imagination Technologies |
| cpe:2.3:a:imaginationtech:ddk:1.18:*:*:*:*:*:*:* | 1.18 | Vulnerable | Imagination Technologies |
| cpe:2.3:a:imaginationtech:ddk:23.2:*:*:*:*:*:*:* | 23.2 | Vulnerable | Imagination Technologies |
| cpe:2.3:a:imaginationtech:ddk:24.1:*:*:*:*:*:*:* | 24.1 | Vulnerable | Imagination Technologies |
| cpe:2.3:a:imaginationtech:ddk:24.2:*:*:*:*:*:*:* | 24.2 | Vulnerable | Imagination Technologies |
- cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:* Versions 25.1 – 25.3 Vulnerable ·Imagination Technologies
- cpe:2.3:a:imaginationtech:ddk:1.17:*:*:*:*:*:*:* Versions 1.17 Vulnerable ·Imagination Technologies
- cpe:2.3:a:imaginationtech:ddk:1.18:*:*:*:*:*:*:* Versions 1.18 Vulnerable ·Imagination Technologies
- cpe:2.3:a:imaginationtech:ddk:23.2:*:*:*:*:*:*:* Versions 23.2 Vulnerable ·Imagination Technologies
- cpe:2.3:a:imaginationtech:ddk:24.1:*:*:*:*:*:*:* Versions 24.1 Vulnerable ·Imagination Technologies
- cpe:2.3:a:imaginationtech:ddk:24.2:*:*:*:*:*:*:* Versions 24.2 Vulnerable ·Imagination Technologies
Remediation
- Fix · CNA Graphics DDK (Imagination Technologies) Fixed in 26.1 RTM
Timeline
- 2026-10-02 Threatist record created from CVE-2026-22163
- 2026-10-03 Alias added: GHSA-fm63-79wx-q4c2
References
More Imagination Technologies Ddk vulnerabilities
- TI-2023-04574 GPU kernel implementations susceptible to memory leak CVSS 3.1MEDIUM 6.5
- TI-2026-13612 GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOffset CVSS 3.1CRITICAL 9.8
- TI-2025-12749 GPU DDK - libusc UAF via WebGPU shaders at MergeConsecutiveBarriersBP CVSS 3.1CRITICAL 9.8
- TI-2025-18845 GPU DDK - GPU Register value contents leaked from secure workloads to non-secure world CVSS 3.1CRITICAL 9.1
- TI-2026-17504 GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation CVSS 3.1CRITICAL 9.6
- TI-2026-17506 GPU DDK - libusc OOB write at TreeRemove during WebGPU shader compilation CVSS 3.1HIGH 7.7
Sources
- CVE-2026-22163 · CVE Program
- CVE-2026-22163 · NVD
- FIRST EPSS
- GHSA-fm63-79wx-q4c2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences