CVE-2026-7476

Awaiting Analysis Awaiting Analysis - Queue

Use After Free in Arm GPU Kernel Drivers

Publication date: 2026-09-08

Last updated on: 2026-09-10

Assigner: Arm Limited

Description

Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to access already freed memory. This issue affects Bifrost GPU Kernel Driver: from r49p3 through r49p5, r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r49p3 through r49p5, from r51p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r49p3 through r49p5, from r51p0 through r54p3, r55p0.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-08

Last Modified

2026-09-10

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-7476

Affected Vendors & Products

Vendor	Product	Version / Range
arm_ltd	bifrost_gpu_kernel_driver	From r49p3 (inc) to r49p5 (inc)
arm_ltd	bifrost_gpu_kernel_driver	From r51p0 (inc)
arm_ltd	bifrost_gpu_kernel_driver	From r54p1 (inc) to r54p2 (inc)
arm_ltd	valhall_gpu_kernel_driver	From r49p3 (inc) to r49p5 (inc)
arm_ltd	valhall_gpu_kernel_driver	From r51p0 (inc) to r54p3 (inc)
arm_ltd	valhall_gpu_kernel_driver	From r55p0 (inc)
arm_ltd	arm_5th_gen_gpu_architecture_kernel_driver	From r49p3 (inc) to r49p5 (inc)
arm_ltd	arm_5th_gen_gpu_architecture_kernel_driver	From r51p0 (inc) to r54p3 (inc)
arm_ltd	arm_5th_gen_gpu_architecture_kernel_driver	From r55p0 (inc)

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 is a Use After Free vulnerability in Arm Ltd GPU Kernel Drivers. It occurs when a local non-privileged user process improperly handles GPU memory operations, accessing memory that has already been freed. This can lead to memory corruption or crashes.

Impact Analysis

This vulnerability could allow an attacker to execute arbitrary code, escalate privileges, or cause system instability. Since it requires local access, it primarily affects systems running vulnerable GPU drivers.

Mitigation Strategies

Update affected GPU kernel drivers to versions beyond the specified affected ranges (e.g., Bifrost beyond r49p5, r51p0, r54p2; Valhall beyond r54p3, r55p0; Arm 5th Gen beyond r54p3, r55p0).

Restrict local user access to GPU operations until updates are applied.

Hi! I’m here to help you understand CVE-2026-7476. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70