The Scanner File Utility (aka listener) in Kyocera Mita (KM) 3.3.0.1 uses a small space of predictable user identification numbers for access control, which allows remote attackers to upload documents via a brute force attack.
https://exchange.xforce.ibmcloud.com/vulnerabilities/44719
http://www.informit.com/guides/content.aspx?g=security&seqNum=321