CVE-2026-34192

Deferred Deferred - Pending Action

GPU Page Table UAF via Improper System Calls

Publication date: 2026-06-19

Last updated on: 2026-06-22

Assigner: imaginationtech

Description

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause an error path leading to UAF of GPU page tables. The vulnerability allows physical memory allocated for MMU page tables to be used after being freed. This was caused by an error path that would not cleanup properly before freeing the physical allocation.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-19

Last Modified

2026-06-22

Generated

2026-07-09

AI Q&A

2026-06-19

EPSS Evaluated

2026-07-08

NVD

CVE-2026-34192

EUVD

EUVD-2026-38001

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

This vulnerability occurs when software running as a non-privileged user makes improper GPU system calls that trigger an error path. This error path leads to a Use-After-Free (UAF) condition involving GPU page tables.

Specifically, physical memory allocated for the Memory Management Unit (MMU) page tables is used after it has been freed. The root cause is an error path that fails to properly clean up before freeing the physical memory allocation.

Impact Analysis

The vulnerability allows use of freed physical memory related to GPU page tables, which can lead to unpredictable behavior or exploitation by attackers.

Potential impacts include system instability, crashes, or escalation of privileges if an attacker can leverage the Use-After-Free condition to execute arbitrary code or access sensitive information.

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