CVE-2005-4827: Canon Network Camera Server VB101

High severity, CVSS 7.5. EPSS: 11.2% chance of exploitation in the next 30 days.

Internet Explorer 6.0, and possibly other versions, allows remote attackers to bypass the same origin security policy and make requests outside of the intended domain by calling open on an XMLHttpRequest object (Microsoft.XMLHTTP) and using tab, newline, and carriage return characters within the first argument (method name), which is supported by some proxy servers that convert tabs to spaces. NOTE: this issue can be leveraged to conduct referer spoofing, HTTP Request Smuggling, and other attacks.

Affected products

• Canon Network Camera Server VB101: any version
• Microsoft Ie: version 6 only; version 6.0 only
• Microsoft Internet Explorer: version 6 only; version 6.0 only; version 6.0.2600 only; version 6.0.2800 only; version 6.0.2800.1106 only; version 6.0.2900.2180 only

Published 2005-12-31. Last modified 2026-06-16.