TI-2026-29782 Aliases CVE-2026-41156 GHSA-fpwh-r7hr-w6hc

GPU DDK - kernel<->fw CCB contains SYNC_PRIMITIVE_BLOCK firmware address without holding reference

LOW 35CWE-416Published 2026-06-19 · Updated 2026-06-22

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · 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 cause mismanagement of resources creating a write use after free scenario. A shared resource (memory page) managed by a CPU thread of control (driver) and accessed by a GPU thread of control (Firmware) can cause a write UAF when the CPU thread frees the resource before the GPU FW has finished accessing it.

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): 26.2 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	1.18 RTM; 23.2 RTM; 24.2 RTM; 25.1 RTM – 25.3 RTM; 26.1 RTM	26.2 RTM	Patch available	CNA

Graphics DDK VendorImagination Technologies Affected 1.18 RTM; 23.2 RTM; 24.2 RTM; 25.1 RTM – 25.3 RTM; 26.1 RTM Fixed in 26.2 RTM 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 26.2 RTM

Timeline

2026-10-02 Threatist record created from CVE-2026-41156
2026-10-03 Alias added: GHSA-fpwh-r7hr-w6hc

References

Other 1

https://www.imaginationtech.com/gpu-driver-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

See all 95 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences