Main Vulnerability Database Vulnerabilities #VU126163

Heap-based buffer overflow in Microsoft Windows and Windows Server - CVE-2026-32223

Published: April 15, 2026 / Updated: April 30, 2026

Vulnerability identifier: #VU126163

CSH Severity: Low

CVSS v4: 7 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-32223

CWE-ID: CWE-122

Exploitation vector: Local access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a local attacker to escalate privileges on the target system.

The vulnerability exists due to a boundary error in Windows USB Printing Stack (usbprint.sys). An attacker with physical access can trigger a heap-based buffer overflow and gain elevated privileges on the target system.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2026-32223

Install updates from vendor's website.

Microsoft Windows - addressed in versions 11 24H2 10.0.26100.32690, 11 25H2 10.0.26200.8246, 11 26H1 10.0.28000.1836
Windows Server - addressed in versions 2012 R2 6.3.9600.23132, 2025 10.0.26100.32690

Links to Public Exploits and PoC-codes

Exploit #12685 - CVE-2026-32223-USBPrint-Exploit (Proof-of-Concept exploit for CVE-2026-32223) (April 30, 2026)

External References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32223

Related Security Bulletins

Privilege escalation in Microsoft Windows USB Printing Stack (usbprint.sys)