CVE-2007-2223: Microsoft XML Core Services

High severity, CVSS 9.3. EPSS: 48.7% chance of exploitation in the next 30 days.

Microsoft XML Core Services (MSXML) 3.0 through 6.0 allows remote attackers to execute arbitrary code via the substringData method on a (1) TextNode or (2) XMLDOM object, which causes an integer overflow that leads to a buffer overflow.

Affected products

• Microsoft XML Core Services: version 3.0 only; version 4.0 only; version 6.0 only; version 5.0 only

Published 2007-08-14. Last modified 2026-06-16.