Schneider Electric Trio J-Series License Free Ethernet Radio with firmware 3.6.0 through 3.6.3 uses the same AES encryption key across different customers' installations, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging knowledge of this key from another installation.
http://www.schneider-electric.com/download/ww/en/file/141141292-SEVD-2013-143-01.pdf