Unspecified vulnerability in the Network Controller in Xerox WorkCentre 6400 System Software 060.070.109.11407 through 060.070.109.29510, and Net Controller 060.079.11410 through 060.079.29310, allows remote attackers to access "directory structure" via a crafted PostScript file, aka "Unauthorized Directory Structure Access Vulnerability."
http://www.xerox.com/downloads/usa/en/c/cert_XRX10-001_v1.0.pdf
http://www.vupen.com/english/advisories/2010/0208