Is port 37777 (Dahua DVR TCP) dangerous?

Port 37777 is classified as critical risk and should not be exposed to the public internet. It transmits data without encryption, making it vulnerable to eavesdropping and credential theft.

Should port 37777 be open on my firewall?

No, port 37777 should not be open to the public internet. Block it at the firewall and use encrypted alternatives such as SSH, SFTP, or HTTPS instead.

What transport protocol does port 37777 use?

Port 37777 (Dahua DVR TCP) uses the TCP transport protocol and falls under the Other category.

:37777 (TCP)

Dahua DVR TCP

Critical Riesgo

TCP — Other

Resumen del puerto

Número de puerto 37777

Nombre del servicio Dahua DVR TCP

Protocolo de transporte TCP

Categoría Other

Riesgo de seguridad Critical

Rango de puertos Registrados (1024-49151)

Qué es el puerto 37777?

Default TCP client access port for Dahua brand DVR, NVR, and IP camera systems. Used by Dahua's proprietary client software (SmartPSS, DSS) for remote viewing and management. Heavily targeted in botnet and vulnerability scanning campaigns.

TCP Other De uso común

Consideraciones de seguridad

El puerto 37777 (Dahua DVR TCP) está clasificado como riesgo crítico. Este puerto no debe exponerse a internet público. El servicio transmite datos sin cifrado, haciéndolo vulnerable a escuchas, robo de credenciales y ataques de intermediario.

Recomendación: Bloquea este puerto en el firewall. Utiliza alternativas cifradas (SSH, SFTP, HTTPS) en su lugar.

Puertos relacionados — Other

35 Private Printer Server 43 WHOIS 63 Whois++ 75 Private Dial-Out Service 78 VetTCP 91 MIT-DOV 92 NPP 104 DICOM

Términos relacionados

ASN BGP Hijack Data Center Domain Name Dual Stack Internet Exchange Point (IXP)