GPU DDK - libusc UAF via WebGPU shaders at MergeConsecutiveBarriersBP
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
A web page that contains unusual GPU shader code is loaded from the Internet into the GPU compiler process triggers a write use-after-free crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device. The shader code contained in the web page executes a path in the compiler that held onto an out of date pointer, pointing to a freed memory object.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 | 25.1 RTM – 25.2 RTM | 1.17 RTM, 1.18 RTM, 23.2 RTM, 24.1 RTM, 25.3 RTM | Patch available | CNA |
- Graphics DDK VendorImagination Technologies Affected 25.1 RTM – 25.2 RTM Fixed in 1.17 RTM, 1.18 RTM, 23.2 RTM, 24.1 RTM, 25.3 RTM Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:* | before 25.3 | Vulnerable | Imagination Technologies |
- cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:* Versions before 25.3 Vulnerable ·Imagination Technologies
Remediation
- Fix · CNA Graphics DDK (Imagination Technologies) Fixed in 1.17 RTM, 1.18 RTM, 23.2 RTM, 24.1 RTM, 25.3 RTM
Timeline
- 2026-10-02 Threatist record created from CVE-2025-13952
- 2026-10-03 Alias added: GHSA-2275-6765-h9pg
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-2025-18845 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
- TI-2025-36180 GPU DDK - Reservation::psMappedPMR can change while used by a freelist -> UAF CVSS 3.1HIGH 8.8
Sources
- CVE-2025-13952 · CVE Program
- CVE-2025-13952 · NVD
- FIRST EPSS
- GHSA-2275-6765-h9pg · GitHub Advisory Database · CC BY 4.0
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