RPC Program Enumeration with rpcinfo
Jan 26, 2026
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3 min read
Service
1 min read
Updated: Jul 13, 2026
What is RPCBind / Portmapper?
RPCBind maps RPC program numbers to ports so RPC clients can find services like NFS-related daemons.
Common security issues
RPC program exposure that leads straight into NFS and other RPC services
Information leakage from listing registered RPC programs
NFS stacks reachable externally due to weak network segmentation
Misconfigured RPC access controls or overly broad firewall rules
Enumeration
Guides for enumerating RPC programs and ports via rpcinfo
Vulnerability Discovery
Find dangerous RPC services via portmapper like NFS, NIS, rexd
RPCBind Exposed Services Assessment
Mar 30, 2026
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5 min read