F*EX (Frams' Fast File EXchange) contains a flaw in 'dop' that is triggered when an error occurs during the handling of the lib or spool directories. No further details have been provided.
Upgrade to version 20120718 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds. Note: This was likely fixed in an earlier version, but the changelog does not indicate when each release was done.