CVE-2026-45201

GPU DDK - Incorrect page size validation in PhysmemNewRamBackedPMR could lead to OOB read and/or write of arbitrary physical memory

At a glance

Severity: HIGH 7.8
EPSS: EPSS 0.16 % · percentile 5 (2026-10-27)
State: PUBLISHED
Published: 2026-08-21
Updated: 2026-08-27
Assigner: imaginationtech
NVD status: Deferred

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-1284

European references

ENISA EUVD · EUVD-2026-63809
GCVE · GCVE-0-2026-45201

Affected products

Product	Versions
Imagination Technologies · Graphics DDK	unaffected 1.18 RTM2 ; unaffected 23.2 RTM2 ; affected 24.2 RTM2 ; affected 25.1 RTM2 ≤ 25.3 RTM ; affected 26.1 RTM1 ; unaffected 26.1 RTM2

References

https://www.imaginationtech.com/gpu-driver-vulnerabilities/

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD