NuFW 2.2.3, and certain other versions after 2.0, allows remote attackers to bypass time-based packet filtering rules via certain "out of period" choices of packet transmission time.Referenceshttp://secunia.com/advisories/26546http://osvdb.org/39725http://www.securityfocus.com/bid/25379http://www.nufw.org/+NuFW-2-2-4%2C201+.htmlhttps://exchange.xforce.ibmcloud.com/vulnerabilities/36134