Novell Netware 5.0 through 5.1 may allow local users to gain "Domain Admin" rights by logging into a Novell Directory Services (NDS) account, and executing "net use" on an NDS_ADM account that is not in the NT domain but has domain access rights, which allows the user to enter a null password.
Exploitability
AV:LAC:LAu:NImpact
C:PI:PA:P4.6/AV:L/AC:L/Au:N/C:P/I:P/A:P