CVE-2017-0176: Microsoft Windows Server 2003

High severity, CVSS 8.1. EPSS: 45.8% chance of exploitation in the next 30 days.

A buffer overflow in Smart Card authentication code in gpkcsp.dll in Microsoft Windows XP through SP3 and Server 2003 through SP2 allows a remote attacker to execute arbitrary code on the target computer, provided that the computer is joined in a Windows domain and has Remote Desktop Protocol connectivity (or Terminal Services) enabled.

Affected products

• Microsoft Windows Server 2003: any version
• Microsoft Windows XP: any version

Published 2017-06-22. Last modified 2026-06-17.