# CVE-2026-49743: Imagination Technologies Graphics DDK use after free in kernel synchronization

Source: https://junglewise.ai/threats/cve-2026-49743-imagination-technologies-graphics-ddk-use-after-free-in-kernel  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-24. Updated: 2026-07-24  
License: CC BY 4.0 with a link back

CVE-2026-49743 · Severity: info · CVSS 0 · Published 2026-07-24

A vulnerability in the Imagination Technologies Graphics DDK (Driver Development Kit) allows a non-privileged user to interfere with how the system manages GPU resources. By making specific system calls, an attacker could cause the system to use memory that has already been released, potentially leading to a system crash or unauthorized access to sensitive data. This affects devices using these specific GPU drivers, such as certain Android and Linux hardware.

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

## Quick answers

**Is CVE-2026-49743 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-49743 being exploited in the wild.

**How severe is CVE-2026-49743?** Informational severity, with a CVSS score of 0, published 24 July 2026.

**Which products and versions are affected?** Imagination Technologies Graphics DDK 24.2 RTM2, 25.1 RTM2 to 25.3 RTM, 26.1 RTM1.

**Is there a fix for CVE-2026-49743?** 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-2026-49743 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-49743?** Check whether you run Imagination Technologies Graphics 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 use-after-free (UAF) vulnerability exists in the Imagination Technologies Graphics DDK kernel module. During workload submission involving a fence exported by the GPU driver, the reference count of the underlying synchronization primitive is not properly incremented. A local, non-privileged attacker can exploit this by destroying the exported fence to prematurely release the underlying primitive while it is still in use. This results in a read/write UAF condition in the kernel. The vulnerability is patched in versions 1.18 RTM2, 23.2 RTM2, and 26.1 RTM2.

## Affected products

- Imagination Technologies Graphics DDK 24.2 RTM2, 25.1 RTM2 to 25.3 RTM, 26.1 RTM1

## Timeline

- 2026-07-24: disclosed
- 2026-07-24: advisory

## References

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

## Related threats

- [Imagination Technologies Graphics DDK integer overflow in PMR offset calculation](https://junglewise.ai/threats/cve-2026-16280-imagination-technologies-graphics-ddk-integer-overflow-in-pmr)
- [Imagination Technologies Graphics DDK out-of-bounds write in GPU Firmware](https://junglewise.ai/threats/cve-2026-49745-imagination-technologies-graphics-ddk-out-of-bounds-write-in-gpu)
- [Imagination Technologies Graphics DDK out-of-bounds write in GPU Firmware](https://junglewise.ai/threats/cve-2026-49744-imagination-technologies-graphics-ddk-out-of-bounds-write-in-gpu)
- [Imagination Technologies Graphics DDK use-after-free in MMU mapping](https://junglewise.ai/threats/cve-2026-7639-imagination-technologies-graphics-ddk-use-after-free-in-mmu)
- [Imagination Technologies Graphics DDK TOCTOU in GPU Firmware command handling](https://junglewise.ai/threats/cve-2026-45203-imagination-technologies-graphics-ddk-toctou-in-gpu-firmware)