SB2026041588 - Privilege escalation in Microsoft Windows USB Printing Stack (usbprint.sys)
Published: April 15, 2026 Updated: April 30, 2026
Security Bulletin ID
SB2026041588
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2026-32223)
CWE-ID: CWE-122 - Heap-based Buffer Overflow
CVSSv4: 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/E:P/U:Clear
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.
Remediation
Install update from vendor's website.