CVE-2009-2473: Webdav Neon

Medium severity, CVSS 4.3. EPSS: 8.4% chance of exploitation in the next 30 days.

neon before 0.28.6, when expat is used, does not properly detect recursion during entity expansion, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.

Affected products

• Webdav Neon: version 0.28.6 only

Published 2009-08-21. Last modified 2026-06-16.