High severity · published Jun 8, 2026
CVE-2026-34194
GPU DDK - UAF read and/or write to arbitrary physical pages in DevmemIntChangeSparse due to incorrect calculation of the virtual index count
7.1
CVSS
0.1%
EPSS
No
On KEV
Description
Software installed and run as a non-privileged user may conduct improper GPU system calls to cause mismanagement of a mapping state maintained for a sparse memory allocation.
The product accidentally refers to the wrong memory due to the semantics of how math operations are implicitly scaled across buffers of different sizes.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GD
Graphics DDK · Imagination Technologies
24.2 RTM; 25.1 RTM through 25.3 RTM; 26.1 RTM · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34194
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-34194
www.imaginationtech.com
https://www.imaginationtech.com/gpu-driver-vulnerabilities/
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