CVE-2026-34196

HIGH

GPU DDK - UAF read and/or write of arbitrary physical memory due to integer truncation in PMRDevPhysAddrOSMem

Title source: cna
STIX 2.1

Description

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause an integer overflow and map two GPU virtual addresses to the same physical address. One of these virutal mappings can be freed along with the physical page, allowing for a read/write UAF via the second mapping The second virtual mapping references a physical address that has been freed after the first virtual mapping has been freed. This allows the physical memory to be allocated (for example) by another process and read/written to.

References (1)

Core 1

Scores

CVSS v3 7.8
EPSS 0.0012
EPSS Percentile 2.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (6)
Imagination Technologies/Graphics DDK 1.18 RTM2
Imagination Technologies/Graphics DDK 23.2 RTM2
Imagination Technologies/Graphics DDK 24.2 RTM2
Imagination Technologies/Graphics DDK 25.1 RTM2 - 25.3 RTM
Imagination Technologies/Graphics DDK 26.1 RTM1
Imagination Technologies/Graphics DDK 26.1 RTM2
Published Jul 10, 2026
Tracked Since Jul 11, 2026