CVE-2025-54948: Trend Micro Apex One RCE Vulnerability

CVE-2025-54948 Overview

A critical vulnerability exists in the Trend Micro Apex One (on-premise) management console that allows a pre-authenticated remote attacker to upload malicious code and execute commands on affected installations. This command injection vulnerability (CWE-78) enables attackers to fully compromise the endpoint protection management infrastructure without requiring any authentication credentials, making it an extremely dangerous attack vector for enterprise environments.

Critical Impact

Pre-authenticated remote code execution allowing complete system compromise of Trend Micro Apex One management servers. This vulnerability is actively exploited in the wild and has been added to CISA's Known Exploited Vulnerabilities catalog.

Affected Products

• Trend Micro Apex One 2019 (on-premises) for Windows
• Trend Micro Apex One Management Console

Discovery Timeline

• 2025-08-05 - CVE-2025-54948 published to NVD
• 2025-10-31 - Last updated in NVD database

Technical Details for CVE-2025-54948

Vulnerability Analysis

This vulnerability represents a severe security flaw in the Trend Micro Apex One management console. The weakness stems from improper neutralization of special elements used in OS command construction (CWE-78: OS Command Injection). The vulnerability allows unauthenticated remote attackers to execute arbitrary commands on the underlying operating system through the management console interface.

The attack can be executed remotely over the network without requiring any user interaction or prior authentication. Successful exploitation results in complete compromise of confidentiality, integrity, and availability of the affected system. Given that Apex One is an endpoint protection platform, compromising the management console provides attackers with a strategic foothold for lateral movement and potential manipulation of endpoint security policies across the entire managed environment.

The vulnerability has been confirmed as actively exploited in the wild, leading CISA to add it to their Known Exploited Vulnerabilities (KEV) catalog, requiring federal agencies to prioritize remediation.

Root Cause

The root cause is improper input validation in the management console that fails to adequately sanitize user-supplied input before passing it to system command execution functions. This allows specially crafted requests to inject arbitrary OS commands that execute with the privileges of the Apex One management service.

Attack Vector

The attack is network-based and targets the Trend Micro Apex One management console web interface. An attacker can craft malicious HTTP requests containing command injection payloads that bypass input validation and execute on the server. Since no authentication is required, any network attacker with access to the management console port can exploit this vulnerability.

The exploitation flow typically involves:

1. Identifying exposed Apex One management consoles on the network
2. Crafting HTTP requests with embedded command injection payloads
3. Submitting the malicious requests to vulnerable endpoints in the management console
4. Achieving command execution with the privileges of the Apex One service account

The vulnerability allows attackers to potentially disable endpoint protection, exfiltrate sensitive configuration data, establish persistent backdoors, or pivot to attack managed endpoints.

Detection Methods for CVE-2025-54948

Indicators of Compromise

• Unusual outbound connections from Apex One management servers to unknown external IP addresses
• Unexpected process execution originating from Apex One service processes
• Anomalous HTTP requests to the Apex One management console containing special characters or shell metacharacters
• Creation of unauthorized files or scripts in Apex One installation directories
• Evidence of command execution patterns in web server logs associated with the management console

Detection Strategies

• Monitor Apex One management console access logs for suspicious requests containing command injection patterns such as semicolons, pipes, backticks, or shell operators
• Deploy network intrusion detection rules to identify exploitation attempts targeting known vulnerable endpoints
• Implement endpoint detection to alert on unusual child processes spawned by Apex One management services
• Review authentication logs for evidence of unauthorized access attempts to the management console

Monitoring Recommendations

• Enable verbose logging on Apex One management servers and forward logs to a centralized SIEM
• Configure alerts for any outbound network connections from the Apex One management server to unexpected destinations
• Implement file integrity monitoring on critical Apex One directories to detect unauthorized modifications
• Establish baseline process behavior for Apex One services and alert on deviations

How to Mitigate CVE-2025-54948

Immediate Actions Required

• Apply the security patch from Trend Micro immediately as this vulnerability is actively exploited
• Restrict network access to the Apex One management console to authorized administrative networks only
• Implement web application firewall rules to filter potentially malicious requests to the management console
• Review Apex One management server logs for evidence of prior exploitation attempts
• Ensure Apex One management servers are isolated from general user networks

Patch Information

Trend Micro has released a security patch to address this vulnerability. Administrators should consult the Trend Micro Security Advisory for specific patch versions and installation instructions. Given the critical severity and active exploitation status, patching should be treated as an emergency priority.

This vulnerability is listed in the CISA Known Exploited Vulnerabilities Catalog, which mandates remediation timelines for federal agencies.

Workarounds

• Implement strict network segmentation to limit access to the Apex One management console to authorized IP addresses only
• Deploy a reverse proxy or web application firewall in front of the management console with input validation rules
• Consider temporarily disabling remote access to the management console and requiring local administrative access until patching is complete
• Enable additional logging and monitoring on Apex One management servers to detect exploitation attempts

# Example: Restrict management console access via Windows Firewall
# Limit access to management console port to authorized admin networks only
netsh advfirewall firewall add rule name="Apex One Management Console Access" dir=in action=allow protocol=tcp localport=4343 remoteip=10.0.10.0/24
netsh advfirewall firewall add rule name="Apex One Management Console Block" dir=in action=block protocol=tcp localport=4343