IrfanView Formats Plug-in XPM Parsing Integer Overflow -
http://www.securityfocus.com/archive/1/502516

Severity
Rating: Highly critical
Impact: System access
Where: From remote

Update the 'Formats' plugin now; shown here:
Plugins updated after the version 4.22:
FORMATS Plugin (4.23) - Installer or ZIP
http://www.irfanview.com/plugins.htm