CVE-2025-25364: Connectify Speedify RCE Vulnerability

CVE-2025-25364 Overview

A command injection vulnerability exists in the me.connectify.SMJobBlessHelper XPC service of Speedify VPN for macOS. This vulnerability affects versions up to and including v15.0.0 and allows attackers to execute arbitrary commands with root-level privileges on affected systems. The flaw resides in the privileged helper component that Speedify installs to perform system-level operations, making it a high-value target for local privilege escalation attacks.

Critical Impact

Attackers with local access can exploit this command injection vulnerability to execute arbitrary commands as root, potentially leading to complete system compromise, data exfiltration, and persistent backdoor installation on macOS systems running vulnerable Speedify VPN versions.

Affected Products

• Connectify Speedify VPN for macOS (versions up to v15.0.0)
• macOS systems with the me.connectify.SMJobBlessHelper XPC service installed
• Enterprise environments using Speedify for VPN connectivity

Discovery Timeline

• 2025-12-23 - CVE-2025-25364 published to NVD
• 2026-01-06 - Last updated in NVD database

Technical Details for CVE-2025-25364

Vulnerability Analysis

This command injection vulnerability (CWE-77) affects the XPC service component of Speedify VPN on macOS. XPC (Cross-Process Communication) services in macOS are used for inter-process communication, and privileged helper tools installed via SMJobBless run with elevated privileges. The me.connectify.SMJobBlessHelper service, which operates with root privileges to perform VPN-related system operations, fails to properly sanitize input before passing it to system command execution functions.

The local attack vector means an attacker must already have some level of access to the target macOS system. However, no additional privileges are required to exploit this vulnerability, making it particularly dangerous in multi-user environments or scenarios where an attacker has gained initial foothold through other means. Successful exploitation results in complete confidentiality, integrity, and availability impact to the affected system.

Root Cause

The root cause of CVE-2025-25364 is improper input validation in the XPC message handling code within the SMJobBlessHelper service. When the helper receives XPC messages from client applications, it constructs system commands using user-supplied data without adequate sanitization. This allows specially crafted input to break out of the intended command context and inject arbitrary shell commands that execute with root privileges.

XPC services registered with SMJobBless are designed to perform privileged operations on behalf of unprivileged applications. The trust model assumes that the calling application will provide safe input, but this assumption creates a security vulnerability when input validation is insufficient. Any process running on the same system can communicate with the XPC service, making this a viable privilege escalation vector.

Attack Vector

The attack leverages the local XPC communication mechanism on macOS. An attacker with local access to the system can craft malicious XPC messages targeting the me.connectify.SMJobBlessHelper service. By injecting shell metacharacters or command separators into parameters that are eventually passed to command execution functions, the attacker can execute arbitrary commands as root.

The exploitation process involves establishing an XPC connection to the vulnerable helper service and sending specially crafted messages containing command injection payloads. Since the helper runs with root privileges and doesn't properly validate the input, the injected commands are executed in a privileged context.

Detection Methods for CVE-2025-25364

Indicators of Compromise

• Unusual XPC connections to the me.connectify.SMJobBlessHelper service from non-Speedify processes
• Unexpected child processes spawned by the SMJobBlessHelper with suspicious command-line arguments
• Shell commands or system utilities being executed by the helper that are outside normal VPN operations
• Anomalous root-level process activity correlated with XPC service invocations

Detection Strategies

• Monitor XPC service communications using macOS Endpoint Security Framework for connections to me.connectify.SMJobBlessHelper
• Implement process monitoring to detect unusual child processes spawned by the Speedify helper service
• Deploy behavioral analysis rules to identify command injection patterns in process creation events
• Utilize SentinelOne's macOS agent to detect privilege escalation attempts and suspicious helper service behavior

Monitoring Recommendations

• Enable detailed logging for privileged helper processes and XPC service activity
• Configure SentinelOne to alert on unexpected command execution chains originating from VPN helper services
• Monitor for newly created files or persistence mechanisms established by root-privileged processes
• Review system integrity and look for unauthorized modifications following any detected exploitation attempts

How to Mitigate CVE-2025-25364

Immediate Actions Required

• Update Speedify VPN to the latest patched version immediately on all affected macOS systems
• Audit systems for signs of compromise, particularly focusing on unauthorized privilege escalation
• Implement application allowlisting to restrict processes that can communicate with XPC services
• Consider temporarily removing or disabling Speedify VPN on critical systems until patching is complete

Patch Information

Connectify has released a security update addressing this vulnerability. Users should update Speedify VPN beyond version v15.0.0 to receive the fix. The vendor advisory is available at the Speedify Security Blog with detailed information about the patched versions and update procedures.

Organizations should prioritize patching systems where multiple users have local access or where the macOS endpoint is exposed to potentially untrusted users or processes.

Workarounds

• Restrict local user access to systems running vulnerable Speedify versions to minimize the attack surface
• Implement strict endpoint security policies using SentinelOne to detect and block privilege escalation attempts
• Consider uninstalling the Speedify VPN client and its helper service (me.connectify.SMJobBlessHelper) until a patch can be applied
• Use macOS system integrity features and runtime protections to limit the impact of potential exploitation

# Verify Speedify VPN version and helper service presence
# Check installed version
/Applications/Speedify.app/Contents/Info.plist | grep -A1 CFBundleShortVersionString

# Check if the vulnerable helper is installed
launchctl print system/me.connectify.SMJobBlessHelper

# Remove the helper service temporarily (requires admin privileges)
# Note: This will disable Speedify VPN functionality
sudo launchctl bootout system/me.connectify.SMJobBlessHelper