parse_notice (TiCPU) in EnergyMech (emech) before 3.0.2 allows remote attackers to cause a denial of service (crash) via empty IRC CTCP NOTICE messages.
https://exchange.xforce.ibmcloud.com/vulnerabilities/27424
http://www.vupen.com/english/advisories/2006/2543
http://www.securityfocus.com/bid/18664
http://www.gentoo.org/security/en/glsa/glsa-200606-26.xml
http://www.energymech.net/versions-3.0.html