Memory leak in SNMP agent in Windows NT 4.0 before SP5 allows remote attackers to conduct a denial of service (memory exhaustion) via a large number of queries.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A952
https://exchange.xforce.ibmcloud.com/vulnerabilities/1974
http://support.microsoft.com/support/kb/articles/q196/2/70.asp