TI-2026-82815 Aliases CVE-2026-65584 GHSA-6892-6w2m-w923

Stack buffer overflow in Imagination Technologies Graphics DDK

LOW 35CWE-121Published 2026-10-30 · Updated 2026-11-05

Key facts

Attack vector: Local
Privileges required: Low
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-121 and the CVSS impact.

Summary

Imagination Technologies Graphics DDK versions 1.18 RTM2, 23.2 RTM2, 24.2 RTM2, 26.1 RTM2 and 25.1 RTM2 through 25.3 RTM are affected. Copying excessive data from an internal buffer into a stack array overflows it while processing resolved Linux/Android fence checkpoints (CWE-121). A local user with low privileges can make improper GPU system calls to corrupt kernel memory, which typically crashes the kernel and causes a denial of service.

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

Description from the CNA

Software installed and run as a non-privileged user may conduct improper GPU system calls causing a stack overflow in the kernel. The overflow occurs when processing resolved Linux/Android fence synchronization checkpoints, while user checkpoints are excluded from the stack array. Successful exploitation can cause kernel memory corruption and typically results in a denial-of-service condition through a kernel crash. The code vulnerability is a buffer write beyond the allocated array on the stack caused by copying excessive data from an internal buffer.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00147 3rd 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 RTM2; 23.2 RTM2; 24.2 RTM2; 25.1 RTM2 – 25.3 RTM; 26.1 RTM2	26.2 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 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

Update Imagination Technologies Graphics DDK to version 26.2 RTM, which fixes the flaw.

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

Fix · CNA Graphics DDK (Imagination Technologies) Fixed in 26.2 RTM

Timeline

2026-10-30 Threatist record created from CVE-2026-65584
2026-10-30 Fix available: Imagination Technologies/Graphics [email protected] RTM · CNA
2026-10-30 Alias added: GHSA-6892-6w2m-w923
2026-11-05 CVSS score added · CISA ADP
2026-11-05 CISA SSVC decision points changed

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