Review reviewHigh

CVE-2026-49743

Imagination Technologies Graphics DDK

Software installed and run as a non-privileged user may conduct improper GPU system calls to manipulate the lifetimes of synchronisation objects in the kernel, leading to read/write UAFs. During workload submission involving a fence exported by the GPU driver, the reference count of the underlying synchronisation primitive is not properly incremented. This can be exploited, by destroying the exported fence and prematurely release the underlying primitive, resulting in a potential use-after-free condition.

CVSS: 7.8
EPSS: 0.11%
CISA KEV: Not listed
Published: 2026.07.24

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.11%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Imagination Technologies Graphics DDK
Affected versions: >= 24.2 RTM2, >= 25.1 RTM2 <= 25.3 RTM, >= 26.1 RTM1
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Imagination Technologies Graphics DDK and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-416