High severity · published Jun 19, 2026
CVE-2026-41156
GPU DDK - kernel<->fw CCB contains SYNC_PRIMITIVE_BLOCK firmware address without holding reference
7.7
CVSS
0.2%
EPSS
No
On KEV
Description
Software installed and run as a non-privileged user may conduct improper GPU system calls to cause mismanagement of resources creating a write use after free scenario.
A shared resource (memory page) managed by a CPU thread of control (driver) and accessed by a GPU thread of control (Firmware) can cause a write UAF when the CPU thread frees the resource before the GPU FW has finished accessing it.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GD
Graphics DDK · Imagination Technologies
1.18 RTM; 23.2 RTM; 24.2 RTM; 25.1 RTM through 25.3 RTM; 26.1 RTM · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41156
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41156
www.imaginationtech.com
https://www.imaginationtech.com/gpu-driver-vulnerabilities/
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