IPSSH (aka the SSH server) in Wind River VxWorks 6.5 through 6.9 allows remote attackers to cause a denial of service (daemon outage) via a crafted authentication request.
http://jvndb.jvn.jp/jvndb/JVNDB-2013-000018
http://jvn.jp/en/jp/JVN45545972/index.html