GPU DDK - Incorrect page size validation in PhysmemNewRamBackedPMR could lead to OOB read…
Priority LOW 35CWE-1284Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- 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 pass invalid log2 page size when allocating physical pages leading to OOB read and/or write due to improper validation of the said value. Such crafted log2 page size could lead to 4K pages being treated as higher order pages and allowing read and/or write access to the memory beyond 4K threshold.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00162 5th percentileScored 2026-11-07
Fix Fixed Graphics DDK (Imagination Technologies): 1.18 RTM2, 23.2 RTM2, 26.1 RTM2
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 | 24.2 RTM2; 25.1 RTM2 – 25.3 RTM; 26.1 RTM1 | 1.18 RTM2, 23.2 RTM2, 26.1 RTM2 | Patch available | CNA |
- Graphics DDK VendorImagination Technologies Affected 24.2 RTM2; 25.1 RTM2 – 25.3 RTM; 26.1 RTM1 Fixed in 1.18 RTM2, 23.2 RTM2, 26.1 RTM2 Patch available CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:* | — | — | Imagination Technologies |
- cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:* Versions — — ·Imagination Technologies
Remediation
- Fix · CNA Graphics DDK (Imagination Technologies) Fixed in 1.18 RTM2, 23.2 RTM2, 26.1 RTM2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-45201
- 2026-10-03 Alias added: GHSA-gm95-6x4p-6vph
References
More Imagination Technologies vulnerabilities
- TI-2023-04574 GPU kernel implementations susceptible to memory leak CVSS 3.1MEDIUM 6.5
- TI-2026-82822 Integer truncation in Imagination Graphics DDK limits buffer mapping CVSS 3.1CRITICAL 9.8
- TI-2026-29783 GPU DDK - OOB Write in CalculateNPOTTwiddleSparsePageMap3D CVSS 3.1CRITICAL 9.8
- 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-2025-05971 GPU DDK - RGXFW_CTL.pui8FWScratchBuf Leak/Overwrite CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-45201 · CVE Program
- CVE-2026-45201 · NVD
- FIRST EPSS
- GHSA-gm95-6x4p-6vph · 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