Vulnerability · Published Apr 14, 2026 · Assigned by microsoft
CVE-2026-32223Windows USB Printing Stack (usbprint.sys) Elevation of Privilege Vulnerability
Medium 6.8
In plain English
A medium-severity heap buffer overflow in Windows 11 Version 24H2 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.5%top 55.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
Heap-based buffer overflow in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – before 10.0.26100.8246 |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 – before 10.0.26200.8246 |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0 – before 10.0.28000.1836 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – before 10.0.26100.32690 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – before 10.0.26100.32690 |
Weakness: CWE-122 · Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Windows USB Printing Stack (usbprint.sys) Elevation of Privilege Vulnerability vendor-advisory, patch
- https://www.vicarius.io/vsociety/posts/cve-2026-32223-detection-script-heap-based-buffer-overflow-in-windows-usb-print-driver
- https://www.vicarius.io/vsociety/posts/cve-2026-32223-mitigation-script-heap-based-buffer-overflow-in-windows-usb-print-driver