# CVE-2026-65586: Imagination GPU DDK improper memory freeing leading to arbitrary writes

Source: https://junglewise.ai/threats/cve-2026-65586-software-installed-and-run-as-a-non-privileged-user-may-conduct  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-30. Updated: 2026-10-30  
License: CC BY 4.0 with a link back

CVE-2026-65586 · Severity: info · Published 2026-10-30

Imagination's GPU driver (DDK) contains a flaw where non-privileged users can trigger improper GPU system calls that free memory buffers while they are still in use by the GPU. An attacker can exploit this to replace the freed buffer with another allocation, allowing arbitrary reads or writes to physical memory pages, potentially compromising system integrity or accessing sensitive data.

Technologies: [Imagination Technologies GPU DDK](https://junglewise.ai/threats/technologies/gpu-ddk). Vendors: [Imagination Technologies](https://junglewise.ai/threats/vendors/imagination-technologies).

## Quick answers

**Is CVE-2026-65586 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-65586 being exploited in the wild.

**How severe is CVE-2026-65586?** Informational severity, published 30 October 2026.

**Which products and versions are affected?** Imagination Technologies GPU DDK up to and including 25.2 RTM.

**Is there a fix for CVE-2026-65586?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-65586 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-65586?** Check whether you run Imagination Technologies GPU DDK at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A CPU-managed memory buffer accessed by GPU firmware can be freed prematurely through improper GPU system calls initiated by non-privileged users. The attacker can then allocate a replacement buffer and redirect the GPU's shared resource pointer (memory page address list), causing the GPU to access arbitrary physical memory not managed by the driver. This results in arbitrary read/write access to physical memory pages.

## Affected products

- Imagination Technologies GPU DDK up to and including 25.2 RTM

## References

- [https://www.imaginationtech.com/gpu-driver-vulnerabilities/](https://www.imaginationtech.com/gpu-driver-vulnerabilities/)

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