# CVE-2026-45199: Imagination GPU DDK improper memory access from guest VM

Source: https://junglewise.ai/threats/cve-2026-45199-imagination-gpu-ddk-improper-memory-access-from-guest-vm  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-21. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-45199 · Severity: high · CVSS 7.8 · Published 2026-08-21

Imagination Technologies GPU drivers contain a vulnerability allowing guest virtual machines to send improper commands to GPU firmware, resulting in out-of-bounds memory writes. An attacker running software in a guest VM could exploit this to escalate privileges or potentially access data outside the intended GPU memory boundary, affecting virtualized systems using Imagination GPUs.

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-2026-45199 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-45199 being exploited in the wild.

**How severe is CVE-2026-45199?** High severity, with a CVSS score of 7.8, published 21 August 2026.

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

**Is there a fix for CVE-2026-45199?** 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-2026-45199 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-45199?** 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

The vulnerability exists in Imagination Technologies GPU DDK (Driver Development Kit) where guest VM software can post improperly crafted commands to GPU firmware. These malformed commands cause the GPU to perform out-of-bounds memory writes to locations outside the guest's virtualized GPU memory space. The attack requires only software execution within a guest VM context (unprivileged) and does not require network access. By exploiting this out-of-bounds write capability, an attacker can achieve privilege escalation or data access beyond their intended isolation boundary. The vulnerability affects GPU DDK releases up to and including version 25.2 RTM; patches are available in later releases.

## Affected products

- Imagination Technologies GPU DDK up to and including 25.2 RTM

## Timeline

- 2026-08-21: disclosed
- other: CVE-2026-45199 published

## References

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

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