Is port 5631 (PCAnywhere Data) dangerous?

Port 5631 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 5631 be open on my firewall?

No, port 5631 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 5631 use?

Port 5631 (PCAnywhere Data) uses the TCP transport protocol and falls under the Remote Access category.

:5631 (TCP)

PCAnywhere Data

Critical 风险

TCP — Remote Access

端口概览

端口号 5631

服务名称 PCAnywhere Data

传输协议 TCP

类别 Remote Access

安全风险 Critical

端口范围已注册 (1024-49151)

什么是端口 5631?

Port 5631 is used by Symantec (now Broadcom) pcAnywhere for remote desktop data transfer. PCAnywhere was a widely used remote control software before being superseded by modern solutions. A critical vulnerability (CVE-2012-0291) was discovered in 2012 allowing unauthenticated remote code execution on this port.

TCP Remote Access

安全注意事项

端口5631（PCAnywhere Data）被归类为严重风险。此端口不应暴露在公网上。该服务在未加密的情况下传输数据，容易受到窃听、凭据窃取和中间人攻击。

建议：在防火墙处封锁此端口。改用加密替代方案（SSH、SFTP、HTTPS）。

PCAnywhere Data

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端口概览

什么是端口 5631?

安全注意事项

相关端口 — Remote Access

相关术语