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Port 514 Details

known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
514 tcp shell Used by rsh and (also rcp), interactive shell without any logging.

Citrix NetScaler appliance MAS syslog port.

Splunk (big data analysis software) uses the following ports by default:
514 - network input port
8000 - web port (clients accessing the Splunk search page)
8080 - index replication port
8089 - management port (splunkd, aslo used by deployment server)
9997 - indexing port (web interface)
9998 - SSL port

Fortinet FortiGate uses the following ports (in addition to standard ports 53, 80, 443):
514 tcp - FortiAP logging and reporting
541 tcp, 542 tcp - FortiGuard management
703 tcp/udp. 730 udp - FortiGate heartbeat
1000 tcp, 1003 tcp - policy override keepalive
1700 tcp - FortiAuthenticator RADIUS disconnect
5246 udp - FortiAP-S event logs
8000, 8001 tcp - FortiClient SSO mobility agent
8008, 8010 tcp - policy override authentication
8013 tcp - FortiClient v.5.4
8014 tcp - Forticlient v.6
8890 tcp - AV/IPS updates, management, firmware
9443 udp - AV/IPS
9582 tcp - FortiGuard Cloud App DB (

Games that use this port: America's Army

Malware using this port: RPC Backdoor, Whacky, ADM worm

Stack-based buffer overflow in Mike Dubman Windows RSH daemon (rshd) 1.7 allows remote attackers to execute arbitrary code via a long string to the shell port (514/tcp). NOTE: this might overlap [CVE-2007-4006].
References: [CVE-2007-4005] [BID-25044] [SECUNIA-26197]

Denicomp RSHD 2.18 and earlier allows a remote attacker to cause a denial of service (crash) via a long string to port 514.
References: [CVE-2001-0707]

A vulnerability has been reported in Cisco IOS, which can be exploited to cause a DoS (Denial of Service). The vulnerability is caused due to TCP connection information not being properly validated when connecting to a protocol translation resource and can be exploited to cause a reload via specially crafted packets sent to TCP ports 514 or 544. Successful exploitation requires a vulnerable protocol translation configuration or a Telnet-to-PAD protocol translation ruleset to be configured.
References: [CVE-2013-1147] [SECUNIA-52785]
514 udp applications Ooma VoIP - uses UDP port 1194 (VPN tunnel to the Ooma servers for call/setup control), ports 49000-50000 for actual VoIP data, and ports TCP 443, UDP 514, UDP 3480

Multiple buffer overflows in the Syslog server in ManageEngine EventLog Analyzer 6.1 allow remote attackers to cause a denial of service (SysEvttCol.exe process crash) or possibly execute arbitrary code via a long Syslog PRI message header to UDP port 513 or 514.
Reference: [CVE-2010-4840]

Stack-based buffer overflow in the Syslog service (nssyslogd.exe) in Enterasys Network Management Suite (NMS) before allows remote attackers to execute arbitrary code via a long PRIO field in a message to UDP port 514.
References: [CVE-2011-5227] [SECUNIA-47263]

Zimbra Collaboration Open Source 8.8.15 does not encrypt the initial-login randomly created password (from the "zmprove ca" command). It is visible in cleartext on port UDP 514 (aka the syslog port).
References: [CVE-2022-32294]
514 tcp Shell - used to execute non-interactive commands on a remote system (official) Wikipedia
514 udp Syslog - used for system logging (official) Wikipedia
514 tcp trojan ADM worm Trojans
514 tcp RPCBackdoor [trojan] RPC Backdoor SANS
514 tcp shell BSD rshd(8) SANS
514 tcp shell BSD rshd(8) Nmap
514 udp syslog BSD syslogd(8) Nmap
514 udp syslog syslog Neophasis
514 tcp shell "cmd like exec IANA
11 records found
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Related ports: 2  4  200  1716  1717  1718  8000  8080  8089  8777  9997  9998  27900  443  1194  3480  

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External Resources
SANS Internet Storm Center: port 514

Port numbers in computer networking represent communication endpoints. Ports are unsigned 16-bit integers (0-65535) that identify a specific process, or network service. IANA is responsible for internet protocol resources, including the registration of commonly used port numbers for well-known internet services.
Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol, the most commonly used protocol on the Internet and any TCP/IP network. TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and that packets will be delivered in the same order in which they were sent. Guaranteed communication/delivery is the key difference between TCP and UDP.

UDP ports use the Datagram Protocol. Like TCP, UDP is used in combination with IP (the Internet Protocol) and facilitates the transmission of datagrams from one computer to applications on another computer, but unlike TCP, UDP is connectionless and does not guarantee reliable communication; it's up to the application that received the message to process any errors and verify correct delivery. UDP is often used with time-sensitive applications, such as audio/video streaming and realtime gaming, where dropping some packets is preferable to waiting for delayed data.

When troubleshooting unknown open ports, it is useful to find exactly what services/processes are listening to them. This can be accomplished in both Windows command prompt and Linux variants using the "netstat -aon" command. We also recommend runnig multiple anti-virus/anti-malware scans to rule out the possibility of active malicious software. For more detailed and personalized help please use our forums.

Please use the "Add Comment" button below to provide additional information or comments about port 514.
  User Reviews/Comments:
by anonymous - 2017-08-01 16:57
Your list of "Related posrts" includes, "88080" which is an invalid port.
On the upside, clicking it as a link resolves to your page defining it as an invalid port. :-)

by Philip - 2017-08-01 17:53
It's been fixed, thanks :)
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