TI-2026-26493 Aliases CVE-2026-34196 GHSA-54wp-4fgx-pxg4

GPU DDK - UAF read and/or write of arbitrary physical memory due to integer truncation in PMRDevPhysAddrOSMem

LOW 35CWE-416Published 2026-07-10 · Updated 2026-07-13

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-416 and the CVSS impact.

Summary

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause an integer overflow and map two GPU virtual addresses to the same physical address. One of these virutal mappings can be freed along with the physical page, allowing for a read/write UAF via the second mapping The second virtual mapping references a physical address that has been freed after the first virtual mapping has been freed. This allows the physical memory to be allocated (for example) by another process and read/written to.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00167 6th percentileScored 2026-11-07

Fix Fixed Graphics DDK (Imagination Technologies): 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	1.18 RTM2; 23.2 RTM2; 24.2 RTM2; 25.1 RTM2 – 25.3 RTM; 26.1 RTM1	26.1 RTM2	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 RTM1 Fixed in 26.1 RTM2 Patch available CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:imaginationtech:ddk::::::::	before 26.1	Vulnerable	Imagination Technologies
cpe:2.3:a:imaginationtech:ddk:26.1:rtm1::::::	26.1 rtm1	Vulnerable	Imagination Technologies
cpe:2.3:o:google:android:-:::::::*	not specified by NVD	Running on	Google
cpe:2.3:o:linux:linux_kernel:-:::::::*	not specified by NVD	Running on	Linux

cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:* Versions before 26.1 Vulnerable ·Imagination Technologies
cpe:2.3:a:imaginationtech:ddk:26.1:rtm1:*:*:*:*:*:* Versions 26.1 rtm1 Vulnerable ·Imagination Technologies
cpe:2.3:o:google:android:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Google
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux

Remediation

Fix · CNA Graphics DDK (Imagination Technologies) Fixed in 26.1 RTM2

Timeline

2026-10-02 Threatist record created from CVE-2026-34196
2026-10-03 Alias added: GHSA-54wp-4fgx-pxg4

References

Advisory 1

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

TI-2023-04574 GPU kernel implementations susceptible to memory leak CVSS 3.1MEDIUM 6.5
TI-2026-13612 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-2025-18845 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

See all 34 →

Sources

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