Buffer overflow in the Private Communications Transport (PCT) protocol implementation in the Microsoft SSL library, as used in Microsoft Windows NT 4.0 SP6a, 2000 SP2 through SP4, XP SP1, Server 2003, NetMeeting, Windows 98, and Windows ME, allows remote attackers to execute arbitrary code via PCT 1.0 handshake packets.
Use Microsoft vendor hub and Netmeeting product page to widen CVE-2003-0719 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2006-2919, CVE-2004-0117 and CVE-2003-0533 for nearby disclosures in the same product family. Additional editorial context is available in Weekly Security Roundup: Navigating the April 2026 Threat Landscape and Critical Framework Exploits.