TI-2026-82823 Aliases CVE-2026-74915 GHSA-x7m2-2j9q-h4j6

Out-of-bounds write in Imagination Graphics DDK UntwiddlePOTSquare64bpp

MEDIUM 40CWE-823Published 2026-10-30 · Updated 2026-11-05

Key facts

Attack vector: Network
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

Imagination Technologies Graphics DDK versions 1.18 RTM2, 23.2 RTM2, 24.2 RTM2, 25.1 RTM2 through 25.3 RTM, 26.1 RTM2 and 26.2 RTM are affected. A web page with unusual WebGPU content loaded into the GPU GLES render process can trigger an out-of-bounds read and/or write in the UntwiddlePOTSquare64bpp routine (CWE-823), crashing the GPU GLES user-space shared library. On certain platforms, when the graphics process runs with system privileges, this could enable further exploits on the device.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

A web page that contains unusual WebGPU content loaded into the GPU GLES render process can trigger a OOB read and/or write crash in the GPU GLES user-space shared library. On certain platforms, when the process executing graphics workload has system privileges this could enable further exploits on the device.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00266 18th percentileScored 2026-11-07

Fix Fixed Graphics DDK (Imagination Technologies): 26.3 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 RTM2; 23.2 RTM2; 24.2 RTM2; 25.1 RTM2 – 25.3 RTM; 26.1 RTM2; 26.2 RTM	26.3 RTM	Patch available	CNA

Graphics DDK VendorImagination Technologies Affected 1.18 RTM2; 23.2 RTM2; 24.2 RTM2; 25.1 RTM2 – 25.3 RTM; 26.1 RTM2; 26.2 RTM Fixed in 26.3 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

Upgrade Graphics DDK to 26.3 RTM.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Fix · CNA Graphics DDK (Imagination Technologies) Fixed in 26.3 RTM

Timeline

2026-10-30 Threatist record created from CVE-2026-74915
2026-10-30 Alias added: GHSA-x7m2-2j9q-h4j6
2026-11-05 CVSS score added · CISA ADP
2026-11-05 CISA SSVC decision points changed
2026-11-07 Priority changed: LOW → MEDIUM

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