Stack-based Buffer Overflow in Windows USB Driver

Publication date: 2026-09-08

Last updated on: 2026-09-09

Assigner: Microsoft Corporation

Description

Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges over a network.

CVSS Scores

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Meta Information

Published

2026-09-08

Last Modified

2026-09-09

Generated

2026-09-29

AI Q&A

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-69503

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_usb_driver	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-121	A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

Attack-Flow Graph

Executive Summary

This is a stack-based buffer overflow vulnerability in the Windows USB Driver. An authorized attacker can exploit it over a network to elevate their privileges on a system.

Impact Analysis

An attacker could gain higher-level access to your system, allowing them to install programs, view or delete data, or create new accounts with full user rights.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows USB Driver vulnerability. Monitor Microsoft's security advisories for updates and ensure network segmentation to limit unauthorized access.

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