MSRC-CVE-2026-32223 — Windows USB Printing Stack (usbprint.sys) Elevation of Privilege Vulnerability

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Security updates
10.0.26100.32690 — https://support.microsoft.com/help/5082063
10.0.26200.8246 — https://support.microsoft.com/help/5083769
10.0.28000.1836 — https://support.microsoft.com/help/5083768

Vulnerabilities 1

Medium 6.8

CVE-2026-32223 Public exploit

Windows USB Printing Stack (usbprint.sys) Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack.

Microsoft Windows Server 2025 Windows Server 2025 (Server Core installation) Windows 11 Version 24H2 Windows

Apr 14, 2026

Revision history

2026-04-21 #3
Acknowledgement added. This is an informational change only.
2026-04-16 #2
Acknowledgement added. This is an informational change only.
2026-04-14 #1
Information published.

References

CVE-2026-32223 Windows USB Printing Stack (usbprint.sys) Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32223
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss