Cumulative Patch for Internet Explorer (813489) Originally posted: April 23, 2003 Summary Who should read this bulletin: Customers using Microsoft® Internet Explorer. Impact of vulnerability: Four new vulnerabilities, the most serious of which could enable an attacker to execute arbitrary code on a user’s system if the user either browsed to a hostile web site or opened a specially crafted HTML email message. Maximum Severity Rating: Critical Recommendation: System administrators should install the patch immediately Affected Software: Microsoft Internet Explorer 5.01 Microsoft Internet Explorer 5.5 Microsoft Internet Explorer 6.0 More information Download patch