The Nokia 6131 Near Field Communication (NFC) phone with 05.12 firmware automatically installs software upon completing the download of a JAR file, which makes it easier for remote attackers to execute arbitrary code via a crafted URI record in an NDEF tag.
https://exchange.xforce.ibmcloud.com/vulnerabilities/44528
http://www.mulliner.org/nfc/feed/collin_mulliner_eusecwest08_attacking_nfc_phones.pdf
http://www.mulliner.org/nfc/feed/collin_mulliner_25c3_attacking_nfc_phones.pdf
http://events.ccc.de/congress/2008/Fahrplan/events/2639.en.html