CVE-2003-1306

Low severity, CVSS 2.6. EPSS: 1.3% chance of exploitation in the next 30 days.

Microsoft URLScan 2.5, with the RemoveServerHeader option enabled, allows remote attackers to obtain sensitive information (server name and version) via an HTTP request that generates certain errors such as 400 "Bad Request," which leak the Server header in the response.

Published 2003-12-31. Last modified 2026-06-16.