High severity · published Aug 21, 2026
CVE-2026-45201
GPU DDK - Incorrect page size validation in PhysmemNewRamBackedPMR could lead to OOB read and/or write of arbitrary physical memory
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
Software installed and run as a non-privileged user may conduct improper GPU system calls to pass invalid log2 page size when allocating physical pages leading to OOB read and/or write due to improper validation of the said value.
Such crafted log2 page size could lead to 4K pages being treated as higher order pages and allowing read and/or write access to the memory beyond 4K threshold.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
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
24.2 RTM2; 25.1 RTM2 through 25.3 RTM; 26.1 RTM1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-45201
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-45201
www.imaginationtech.com
https://www.imaginationtech.com/gpu-driver-vulnerabilities/
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