Improper input validation in Imagination Technologies Graphics DDK
Priority LOW 31CWE-280Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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 and files. This is caused by improper handling of GPU memory reservation protections.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00099 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
- Partial
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 | 1.18 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 1.18 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 · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:* | before 25.3 | Vulnerable | Imagination Technologies |
| cpe:2.3:a:imaginationtech:ddk:25.3:rtm:*:*:*:*:*:* | 25.3 rtm | Vulnerable | Imagination Technologies |
| cpe:2.3:o:google:android:-:*:*:*:*:*:*:* | not specified by NVD | Running on | |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
- cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:* Versions before 25.3 Vulnerable ·Imagination Technologies
- cpe:2.3:a:imaginationtech:ddk:25.3:rtm:*:*:*:*:*:* Versions 25.3 rtm Vulnerable ·Imagination Technologies
- cpe:2.3:o:google:android:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Google
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
Remediation
- Fix · CNA Graphics DDK (Imagination Technologies) Fixed in 26.1 RTM
Timeline
- 2026-10-02 Threatist record created from CVE-2026-21733
- 2026-10-03 Alias added: GHSA-4h67-fm2h-4qrp
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-2026-21733 · CVE Program
- CVE-2026-21733 · NVD
- FIRST EPSS
- GHSA-4h67-fm2h-4qrp · GitHub Advisory Database · CC BY 4.0
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