Service:
Protocol:
TCPPort:
62078Used for:
Port 62078 is used by Apple’s usbmuxd service for iTunes syncing, backups, and developer communication with iOS devices over Wi-Fi or USB.Why It’s Open
Port 62078 is used by Apple’s usbmuxd (USB multiplexing daemon), which allows macOS and Windows systems to communicate with iOS devices (iPhones, iPads) for data syncing, backup, debugging, and development. Although the name suggests USB use, this service is also accessible over TCP/IP when an iOS device is connected over Wi-Fi and Wi-Fi sync is enabled via iTunes.
When a device is paired, communication is tunneled through usbmuxd over port 62078, enabling tools like iTunes, Xcode, and libimobiledevice to access features like backups, app management, and logs. The port is typically open locally and rarely visible externally unless a system is misconfigured or intentionally exposed (e.g., during device management or dev/testing).
Common Risks
- Unauthorized Access to iOS Device Services
If exposed and paired trust exists, an attacker could access backup data, apps, or logs. - Information Disclosure
Some pairing records are reusable and could allow reconnections without user interaction. - Insecure Development Tools
Developer tools that interact with iOS devices may expose sensitive functionality over this port. - Misconfigured Device Management
MDM or remote sync setups exposing port 62078 could be abused if not properly restricted.
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Enumeration & Testing
Check if it’s open
nmap -sT -p 62078Check pairing over network (from macOS/Linux):
idevicepair validateInspect using usbmuxd-compatible tools:
- iproxy from libimobiledevice
- ideviceinfo, idevicesyslog, idevicebackup2
What to Look For
| Checkpoint | What it means |
|---|---|
| Port 62078 open on host | Device or dev tool is allowing usbmuxd over TCP |
| No firewall or interface restriction | Potential external exposure of iTunes sync services |
| Paired device communicates wirelessly | May allow remote access to backup or debug tools |
| Running on public-facing IP | Misconfigured dev or MDM environment |
Mitigation
- Restrict Access to Port 62078
Block inbound access except on localhost or secure internal dev segments. - Disable Wi-Fi Sync if Unused
Prevent devices from pairing or syncing unless physically connected. - Limit Pairing Trust
Remove unused trust records on iOS devices and monitor pairing prompts. - Harden Dev and MDM Infrastructure
Ensure only authenticated, local access to tools that use usbmuxd. - Monitor for Unexpected Traffic
Use endpoint and network monitoring to detect unusual 62078 activity.
Known CVEs and Exploits
- CVE-2021-30883 – iOS IOMobileFrameBuffer vulnerability, leveraged after usbmuxd access via pairing.
- libimobiledevice / usbmuxd exploitation tools – While not CVEs, the tools can interact with 62078, and improper use can lead to data leaks or unauthorized access.