Format string vulnerability in Speedtouch USB driver before 1.3.1 allows local users to execute arbitrary code via (1) modem_run, (2) pppoa2, or (3) pppoa3.
https://exchange.xforce.ibmcloud.com/vulnerabilities/17792
http://www.mail-archive.com/speedtouch%40ml.free.fr/msg06688.html
http://speedtouch.sourceforge.net/index.php?/news.en.html
http://sourceforge.net/project/showfiles.php?group_id=32758&package_id=28264&release_id=271734