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CVE-2010-1885

CRITICAL CVSS: 9.3 Published: 2010-06-15 Modified: 2026-06-16

Description

The MPC::HexToNum function in helpctr.exe in Microsoft Windows Help and Support Center in Windows XP and Windows Server 2003 does not properly handle malformed escape sequences, which allows remote attackers to bypass the trusted documents whitelist (fromHCP option) and execute arbitrary commands via a crafted hcp:// URL, aka "Help Center URL Validation Vulnerability."

Affected Platforms

Microsoft Windows Server 2003Microsoft Windows XpMicrosoft Windows 2003 Server

Weakness Type

CWE-78

References