Heap-based buffer overflow in httpsvr.exe 6.0.5.3 in Sunway ForceControl 6.1 SP1, SP2, and SP3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted URL.
http://www.us-cert.gov/control_systems/pdf/ICSA-11-167-01.pdf
http://www.sunwayland.com.cn/news_info_.asp?Nid=3593
http://www.cnvd.org.cn/vulnerability/CNVD-2011-05347