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Port 1720 Details
known port assignments and vulnerabilities
threat/application/port search:
| Port(s) |
Protocol |
Service |
Details |
Source |
| 1720 |
tcp |
h323 |
Port most commonly used by Microsoft NetMeeting.
H.323 used for voice-over IP call set-up (H.323 Call Control Signalling, IANA official).
IPContact also uses port 1720 (TCP/UDP)
Unspecified vulnerability in the NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (device reload) by sending crafted H.323 packets to TCP port 1720, aka Bug ID CSCth11006.
References: [CVE-2011-3277], [BID-49822]
innovaphone is vulnerable to a denial of service. By sending random data to its H.323 network service on the TCP port 1720, a remote attacker could exploit this vulnerability to cause the system to reboot.
References: [XFDB-111292]
An out-of-bounds memory write flaw was found in how the Linux kernel’s Voice Over IP H.323 connection tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote user to crash the system, causing a denial of service. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
References: [CVE-2020-14305] |
SG
|
| 1503, 1720, 5222, 5223, 7640, 7642, 7648, 7649 |
tcp |
applications |
CUseeMe-CUworld |
Portforward
|
| 1720 |
tcp |
applications |
H.323 Call Setup |
Portforward
|
| 1718-1720 |
tcp |
applications |
H.323 GateKeeper |
Portforward
|
| 1720,15328-15333 |
tcp |
applications |
I2Eye DVC-1000-DVC-1100 |
Portforward
|
| 1720,2500,5901,1766-1767 |
tcp |
applications |
IPContact |
Portforward
|
| 522,389,1503,1720,1731 |
tcp |
applications |
NetMeeting 2.0 through 3.01 (can also use ports 1024-65535 udp) |
Portforward
|
| 1720,5060 |
tcp |
applications |
Polycom ViaVideo H.323 |
Portforward
|
| 1720 |
tcp |
H.323/Q.931 |
Interactive media |
Nmap
|
| 1720 |
tcp,udp |
h323hostcall |
H.323 Call Control Signalling, modified: 2013-01-31 |
IANA
|
| 1720 |
sctp |
h323hostcall |
H.323 Call Control, registered 2014-07-30 |
IANA
|
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11 records found
Related ports: 1300 1718 1719 5060 11720
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