---
id: "CVE-2026-20584"
kind: "vulnerability"
aliases: ["CVE-2026-20584"]
title: "Linux USB driver: missing bounds check allows memory corruption, local privilege escalation"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "local-privilege-escalation", "usb"]
not_affected_if: ["no-system-privilege-attacker"]
published_at: "2026-11-02T03:17:36+00:00"
first_seen_at: "2026-11-02T03:31:26+00:00"
updated_at: "2026-11-02T03:32:13+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20584", "first_seen_at": "2026-11-02T03:31:26+00:00"}]
---

# Linux USB driver: missing bounds check allows memory corruption, local privilege escalation

A missing bounds check in the USB code can corrupt memory on the device. An attacker who already holds System privilege can use it to escalate to higher privileges.

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

## Timeline

- 2026-11-02T03:31:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-20584

## From the sources

In usb, there is a possible memory corruption due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11411916; Issue ID: MSV-9746.

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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_