Description
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAccess VectorNetwork
AC:MAccess ComplexityMedium
Au:NAuthenticationNone
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:PAvailabilityPartial
Weaknesses
Affected Products
Exploitability
Official Patch Available
References
http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html
lists.apple.com
http://lists.manyfish.co.uk/pipermail/neon/2009-August/001044.html
lists.manyfish.co.uk
http://lists.manyfish.co.uk/pipermail/neon/2009-August/001045.html
lists.manyfish.co.uk
and 10 more references View all →
Timeline
Published
Aug 21, 2009
Last Updated
Apr 23, 2026
Unlock Complete Vulnerability Intelligence
Get the full picture for CVE-2009-2473 and every CVE in our database. Create a free account — no credit card required.
Create Free AccountPlain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows