Imagination Technologies vulnerabilities

CVE-2026-45195 High · 7.8 CWE-280 Jun 26, 2026

GPU DDK - rgxfw_set_mips_fault_address(&psInit->sFaultPhysAddr) is untrusted

Kernel software installed and running inside a Host VM may post improper commands to the GPU Firmware to trigger a memory read or write outside the permitted range of memory for the host kernel. Addresses passed to the GPU Firmware can be used by the Firmware for more privileged memory accesses than are permitted by the system.

CVE-2026-21734 High · 7.7 CWE-823 Jun 26, 2026

GPU DDK - libusc OOB write at TreeRemove during WebGPU shader compilation

A web page that contains unusual GPU shader code is loaded into the GPU compiler process and can trigger a write out-of-bounds write crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device. An edge case using a very small value in GPU shader code can cause a segmentation fault in the GPU shader compiler due to am out-of-bounds write.

CVE-2026-41156 High · 7.7 CWE-416 Jun 19, 2026

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

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.

CVE-2026-34192 High · 7.7 CWE-416 Jun 19, 2026

GPU DDK - _MMU_AllocLevel error recovery paths leave dangling page table entries

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause an error path leading to UAF of GPU page tables. The vulnerability allows physical memory allocated for MMU page tables to be used after being freed. This was caused by an error path that would not cleanup properly before freeing the physical allocation.

CVE-2026-41158 High · 7.8 CWE-416 Jun 12, 2026

GPU DDK - Backed sparse PMRs are not handled by deferred free mechanism after shrink

Software installed and run as a non-privileged user may conduct GPU system calls to write to arbitrary freed physical pages. Physical memory allocated and freed, without the deferred free mechanism can lead to those resources being used for read/write by the GPU after the kernel module has freed the resource.

CVE-2026-41157 Critical · 9.8 CWE-787 Jun 12, 2026

GPU DDK - OOB Write in CalculateNPOTTwiddleSparsePageMap3D

A web page that contains unusual WebGPU content loaded into the GPU GLES render process and can trigger an out-of-bound write in the GPU user-space driver, leading to memory corruption and possible browser/GPU process crash. The software computes a required memory size from untrusted input, but integer overflow can produce a value smaller than needed. Subsequent write operations may then occur past the intended memory boundary, corrupting adjacent memory and causing process instability or termination.

CVE-2026-41155 Medium · 5.5 CWE-653 Jun 12, 2026

GPU DDK - SharedSecMem mapped into all GPU virtual address spaces

An attacker could cooperatively pass data from one secure GPU process to another secure GPU process through shared secure memory allocations in the kernel module. Additionally, an attacker could disrupt the operation of another secure GPU process leading to image corruption / GPU hardware recovery. Sharing secure memory allocations among various GPU secure processes allows an attacker to corrupt shared resource affecting other users.

CVE-2026-34195 High · 8.8 CWE-787 Jun 12, 2026

GPU DDK - Kernel heap OOB write in PMRChangeSparseMemOSMem due to incorrect physical page translation from virtual page indexes

Software installed and run as a non-privileged user may conduct intentional GPU sparse memory API calls to cause out of bounds write in the kernel. The product incorrectly indexes internal state when performing sparse allocation remapping.

CVE-2026-34194 High · 7.1 CWE-468 Jun 8, 2026

GPU DDK - UAF read and/or write to arbitrary physical pages in DevmemIntChangeSparse due to incorrect calculation of the virtual index count

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause mismanagement of a mapping state maintained for a sparse memory allocation. The product accidentally refers to the wrong memory due to the semantics of how math operations are implicitly scaled across buffers of different sizes.

CVE-2026-22164 High · 7.5 CWE-122 Jun 8, 2026

GPU DDK - Kernel heap OOB write in DevmemIntComputeVirtualIndicesFromLogical

Software installed and run as a non-privileged user may conduct improper GPU system calls to corrupt kernel heap memory. By creating resources of certain types and presenting a set of parameters to the affected interface the exploit can be used to corrupt kernel memory.

CVE-2026-34193 Medium · 4.3 CWE-823 Jun 1, 2026

GPU DDK - Arbitrary write via UFO updates due insufficient pointer validation in rgxfw_to_ptr()

Kernel software installed and running inside a Guest/Host VM may post improper commands to the GPU Firmware to trigger a write of data outside the intended GPU memory. A logic error in the address translation allowed a compromised Host (Kernel) to perform arbitrary writes to firmware memory.

CVE-2026-22167 High · 7.8 CWE-119 May 1, 2026

GPU DDK - Cache resident PM buffers writable by other GPU requestors, leading to arbitrary write to physical memory

Software installed and run as a non-privileged user may conduct improper GPU system calls to force GPU to write to arbitrary physical memory pages. Under certain circumstances this exploit could be used to corrupt data pages not allocated by the GPU driver but memory pages in use by the kernel and drivers running on the platform altering their behaviour. This attack can lead the GPU to perform write operations on restricted internal GPU buffers that can lead to a second order affect of corrupted arbitrary physical memory.

CVE-2026-22166 High · 8.1 CWE-416 May 1, 2026

GPU DDK - Write UAF in KEGLGetPoolBuffers, WebGL reachable

A web page that contains unusual WebGPU content loaded into the GPU GLES render process and can trigger write UAF crash in the GPU GLES user-space shared library. On certain platforms, when the process executing graphics workload has system privileges this could enable subsequent exploit on the system.

CVE-2026-22165 High · 8.1 CWE-416 May 1, 2026

GPU DDK - UAF read of GLES3Context::psDrawParams and GLES3Context::psMode and UAF read/write of RMJob::apsCCBs

A web page that contains unusual WebGPU content loaded into the GPU GLES render process and can trigger a write UAF 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.

CVE-2026-21733 High · 7.3 CWE-280 Apr 17, 2026

GPU DDK - Incorrect flags validation in RGXDerivePTEProt8 can allow GPU to overwrite read-only shared memory (e.g. libc.so)

Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory and files. This is caused by improper handling of GPU memory reservation protections.

CVE-2026-22163 High · 7.8 CWE-820 Mar 20, 2026

GPU DDK - Unsafe writing of MMU PT entries on systems with 32-bit host CPU

Requires malware code to misuse the DDK kernel module IOCTL interface. Such code can use the interface in an unsupported way that allows subversion of the GPU to perform writes to arbitrary physical memory pages. The product utilises a shared resource in a concurrent manner but does not attempt to synchronise access to the resource.

CVE-2026-21732 Critical · 9.6 CWE-787 Mar 20, 2026

GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation

A web page that contains unusual GPU shader code is loaded into the GPU compiler process and can trigger a write out-of-bounds write crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device. An edge case using a very large value in switch statements in GPU shader code can cause a segmentation fault in the GPU shader compiler due to an out-of-bounds write access.

CVE-2026-21736 Medium · 4.4 CWE-280 Mar 9, 2026

GPU DDK - Insufficient permission check in PhysmemWrapExtMem() when write attribute support enabled

Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory. This is caused by improper handling of the memory protections for the user-mode wrapped memory resource.

CVE-2025-13952 Critical · 9.8 CWE-416 Jan 24, 2026

GPU DDK - libusc UAF via WebGPU shaders at MergeConsecutiveBarriersBP

A web page that contains unusual GPU shader code is loaded from the Internet into the GPU compiler process triggers a write use-after-free crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device. The shader code contained in the web page executes a path in the compiler that held onto an out of date pointer, pointing to a freed memory object.

CVE-2025-10865 High · 7.8 CWE-416 Jan 13, 2026

GPU DDK - DevmemIntGetReservationData does not ref the PMR it returns

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause mismanagement of reference counting to cause a potential use after free. Improper reference counting on an internal resource caused scenario where potential for use after free was present.

CVE-2025-58411 High · 8.8 CWE-416 Jan 13, 2026

GPU DDK - Reservation::psMappedPMR can change while used by a freelist -> UAF

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause mismanagement of resources reference counting creating a potential use after free scenario. Improper resource management and reference counting on an internal resource caused scenario where potential write use after free was present.

CVE-2025-58409 Low · 3.5 CWE-119 Jan 13, 2026

GPU DDK - Disguised freelist buffers passed to RGXCreateHWRTDataSet can cause arbitrary physical memory writes corrupting memory

Software installed and run as a non-privileged user may conduct improper GPU system calls to subvert GPU HW to write to arbitrary physical memory pages. Under certain circumstances this exploit could be used to corrupt data pages not allocated by the GPU driver but memory pages in use by the kernel and drivers running on the platform altering their behaviour. This attack can lead the GPU to perform write operations on restricted internal GPU buffers that can lead to a second order affect of corrupted arbitrary physical memory.

CVE-2025-25176 Critical · 9.1 CWE-668 Jan 13, 2026

GPU DDK - GPU Register value contents leaked from secure workloads to non-secure world

Intermediate register values of secure workloads can be exfiltrated in workloads scheduled from applications running in the non-secure environment of a platform.

CVE-2025-58408 Medium · 5.9 CWE-416 Dec 1, 2025

GPU DDK - KASAN Read UAF in the PVRSRVBridgeRGXSubmitTransfer2 due to improper error handling code

Software installed and run as a non-privileged user may conduct improper GPU system calls to trigger reads of stale data that can lead to kernel exceptions and write use-after-free. The Use After Free common weakness enumeration was chosen as the stale data can include handles to resources in which the reference counts can become unbalanced. This can lead to the premature destruction of a resource while in use.

CVE-2025-58407 High · 7.4 CWE-367 Nov 17, 2025

GPU DDK - TOCTOU bug affecting psFWMemContext->uiPageCatBaseRegSet

Kernel or driver software installed on a Guest VM may post improper commands to the GPU Firmware to exploit a TOCTOU race condition and trigger a read and/or write of data outside the allotted memory escaping the virtual machine.