CVE-2009-2414: Xmlsoft Libxml

Medium severity, CVSS 4.3. EPSS: 3.1% chance of exploitation in the next 30 days.

Stack consumption vulnerability in libxml2 2.5.10, 2.6.16, 2.6.26, 2.6.27, and 2.6.32, and libxml 1.8.17, allows context-dependent attackers to cause a denial of service (application crash) via a large depth of element declarations in a DTD, related to a function recursion, as demonstrated by the Codenomicon XML fuzzing framework.

Affected products

• Xmlsoft Libxml: version 1.8.17 only
• Xmlsoft LIBXML2: version 2.5.10 only; version 2.6.16 only; version 2.6.26 only; version 2.6.27 only; version 2.6.32 only

Published 2009-08-11. Last modified 2026-06-16.