CVE-2026-49743
GPU DDK - Write UAF of sync checkpoint in GPU kick function after export fence file descriptor is prematurely closed
Description
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.
INFO
Published Date :
July 24, 2026, 9:16 a.m.
Last Modified :
July 24, 2026, 9:16 a.m.
Remotely Exploit :
No
Source :
367425dc-4d06-4041-9650-c2dc6aaa27ce
Affected Products
The following products are affected by CVE-2026-49743
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the GPU driver to the latest version.
- Apply vendor patches for synchronisation object handling.
- Monitor system logs for UAF-related errors.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-49743.
| URL | Resource |
|---|---|
| https://www.imaginationtech.com/gpu-driver-vulnerabilities/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-49743 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-49743
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-49743 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-49743 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 367425dc-4d06-4041-9650-c2dc6aaa27ce
Jul. 24, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Imagination Technologies', 'product': 'Graphics DDK', 'versions': [{'status': 'unaffected', 'version': '1.18 RTM2', 'versionType': 'custom'}, {'status': 'unaffected', 'version': '23.2 RTM2', 'versionType': 'custom'}, {'status': 'affected', 'version': '24.2 RTM2', 'versionType': 'custom'}, {'status': 'affected', 'version': '25.1 RTM2', 'versionType': 'custom', 'lessThanOrEqual': '25.3 RTM'}, {'status': 'affected', 'version': '26.1 RTM1', 'versionType': 'custom'}, {'status': 'unaffected', 'version': '26.1 RTM2', 'versionType': 'custom'}], 'platforms': ['Linux', 'Android'], 'defaultStatus': 'unknown'}] Added Description 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. Added CWE CWE-416 Added Reference https://www.imaginationtech.com/gpu-driver-vulnerabilities/