---
id: "CVE-2026-65586"
kind: "vulnerability"
aliases: ["CVE-2026-65586"]
title: "NVIDIA GPU driver: local user can read and write arbitrary physical memory"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["gpu-driver", "infrastructure", "linux", "nvidia", "windows"]
not_affected_if: ["no-untrusted-local-code", "single-user-trusted-software"]
published_at: "2026-10-30T02:17:09+00:00"
first_seen_at: "2026-10-30T02:28:06+00:00"
updated_at: "2026-10-30T02:30:12+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65586", "first_seen_at": "2026-10-30T02:28:06+00:00"}]
---

# NVIDIA GPU driver: local user can read and write arbitrary physical memory

A non-privileged program can make improper GPU system calls to free a memory buffer still in use, then substitute another allocation. This lets it read and write arbitrary physical memory pages of the machine.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-10-30T02:28:06+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-65586

## From the sources

Software installed and run as a non-privileged user may conduct improper GPU system calls to free memory in still in use, replace with another allocation and cause arbitrary memory reads or writes to physical memory pages.



A memory buffer managed by a CPU thread of control (driver) and accessed by a GPU thread of control (firmware) can be freed while in use. Software installed and run as a non-privileged user may replace that buffer with another and replace a shared resource (memory page address list) managed by the CPU thread of control (driver) leading to the GPU accessing memory not managed by the CPU thread of control (driver).

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_