CVE-2025-11491: DesktopCommanderMCP RCE Vulnerability

CVE-2025-11491 Overview

A command injection vulnerability has been identified in wonderwhy-er DesktopCommanderMCP versions up to and including 0.2.13. The vulnerability exists within the CommandManager function located in the src/command-manager.ts file. An attacker can exploit this flaw to inject and execute arbitrary operating system commands remotely on the target system. The exploit has been made public, increasing the risk of widespread exploitation.

Critical Impact

Remote attackers can execute arbitrary OS commands on systems running vulnerable versions of DesktopCommanderMCP, potentially leading to complete system compromise, data exfiltration, or lateral movement within a network.

Affected Products

• wonderwhy-er DesktopCommanderMCP versions up to 0.2.13
• Applications leveraging DesktopCommanderMCP as a dependency
• Systems with DesktopCommanderMCP exposed to network access

Discovery Timeline

• October 8, 2025 - CVE-2025-11491 published to NVD
• December 12, 2025 - Last updated in NVD database

Technical Details for CVE-2025-11491

Vulnerability Analysis

This vulnerability is classified as an OS Command Injection (CWE-78) and Command Injection (CWE-77) issue. The flaw resides in the CommandManager function within src/command-manager.ts, where user-supplied input is improperly sanitized before being passed to system command execution functions.

When an attacker provides specially crafted input through a network-accessible interface, the application fails to properly validate or escape shell metacharacters. This allows the injection of additional OS commands that execute with the same privileges as the DesktopCommanderMCP application process.

The attack can be initiated remotely without requiring user interaction, though authenticated access (low privileges) is needed. Successful exploitation can result in unauthorized command execution, affecting the confidentiality, integrity, and availability of the target system.

Root Cause

The root cause of this vulnerability is insufficient input validation and sanitization in the CommandManager function. The application directly concatenates or interpolates user-controlled data into command strings that are subsequently executed by the underlying operating system shell. Without proper escaping of shell metacharacters such as ;, |, &, $(), and backticks, attackers can break out of the intended command context and inject malicious commands.

Attack Vector

The attack vector is network-based, allowing remote exploitation. An authenticated attacker with low privileges can manipulate input parameters processed by the CommandManager function to inject arbitrary OS commands.

The vulnerability can be exploited by:

1. Identifying input fields or API endpoints that interact with the CommandManager function
2. Crafting malicious payloads containing shell metacharacters and commands
3. Submitting the payload through the application's network interface
4. The injected commands execute on the server with application-level privileges

For detailed technical information about this vulnerability, refer to the GitHub Issue Discussion and the VulDB entry.

Detection Methods for CVE-2025-11491

Indicators of Compromise

• Unexpected child processes spawned from the DesktopCommanderMCP application
• Unusual network connections originating from the application process
• Suspicious command-line arguments in process logs containing shell metacharacters
• Anomalous file system activity or modifications by the application user

Detection Strategies

• Monitor process execution logs for command-line arguments containing injection patterns such as ;, |, &&, ||, or command substitution syntax
• Implement application-layer logging to capture all inputs processed by the CommandManager function
• Deploy network intrusion detection rules to identify payloads containing OS command injection patterns
• Use endpoint detection and response (EDR) solutions to detect anomalous process chains

Monitoring Recommendations

• Enable verbose logging for DesktopCommanderMCP and monitor for unusual command execution patterns
• Configure SentinelOne Singularity to monitor for behavioral indicators of command injection exploitation
• Establish baseline behavior for the application and alert on deviations
• Monitor system calls and process creation events from the DesktopCommanderMCP process

How to Mitigate CVE-2025-11491

Immediate Actions Required

• Upgrade DesktopCommanderMCP to a version higher than 0.2.13 when a patched version becomes available
• Restrict network access to DesktopCommanderMCP instances to trusted sources only
• Implement web application firewall (WAF) rules to filter command injection patterns
• Review and audit all input handling in custom implementations using DesktopCommanderMCP

Patch Information

Monitor the DesktopCommanderMCP GitHub repository for updates regarding security patches. Organizations should track the official GitHub releases and apply updates as soon as they become available. In the interim, implement the workarounds described below to reduce exposure.

Workarounds

• Isolate DesktopCommanderMCP instances behind network segmentation and access controls
• Implement strict input validation at the application boundary, rejecting any input containing shell metacharacters
• Use allowlist-based validation for expected input patterns where possible
• Consider running the application in a sandboxed environment with minimal system privileges

# Example: Restrict network access using iptables
# Only allow connections from trusted IP ranges
iptables -A INPUT -p tcp --dport <app_port> -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport <app_port> -j DROP