Table of Contents:

• Affected Products and Versions
• Exploitation and Impact
• Mitigation and Remediation
• Security Context and Recommendations
• Technical Details
• Conclusion
• FAQ

CVE-2025-54948: Critical Vulnerability in Trend Micro Apex One

Did you know a serious weakness has been discovered in Trend Micro Apex One? It’s called CVE-2025-54948, a flaw that allows attackers to remotely control affected systems.

The CVE-2025-54948 vulnerability is a severe command injection issue. It impacts the on-premise version of Trend Micro Apex One, a well-known platform for endpoint security. A remote attacker, without needing to log in, injects and runs operating system commands on the management console. This represents a significant risk, specifically remote code execution (RCE) .

Specifically, this weakness resides within the Apex One management console. By default, it communicates on TCP ports 8080 also 4343. At its heart, the problem is inadequate checking of user-provided information before it’s used in system commands. With this flaw, an attacker creates payloads that inject operating system commands. The commands are then executed, benefiting from the privileges of the IUSR account, a Windows user account utilized for anonymous web access .

CVE-2025-54948 has a close connection with CVE-2025-54987. That’s because they are nearly identical but target different CPU architectures. A base score of 9.4 was given to both vulnerabilities based on the CVSS v3.1, indicating just how critical they are, and the potential for substantial damage to confidentiality, integrity, as well as availability .

Affected Products and Versions

This flaw affects the on-premise versions of Trend Micro Apex One Management Server. More specifically, versions 20216 and earlier, and Management Server Version 14039 and earlier are vulnerable. Although the cloud-hosted SaaS versions of Apex One, also Trend Vision One had the weakness at first, Trend Micro added safeguards for cloud services by July 31, 2025 .

Exploitation and Impact

To use CVE-2025-54948, the attacker needs access to the Apex One Management Console interface. This access is either local and remote, but the important point is, the attacker doesn’t have to be authenticated. After this, they upload malicious code, executing arbitrary commands on the server that hosts the management console. This leads to full system compromise, data theft, disruption of security monitoring or lateral movement within the network .

Trend Micro verified at least one instance of active exploitation attempts. This underscores the urgent need to address this vulnerability. Incident Response team from the company, and Jacky Hsieh, a researcher at CoreCloud Tech, are credited with reporting this weakness .

Mitigation and Remediation

As of early August 2025, Trend Micro had not yet created a formal patch for CVE-2025-54948. However, it did provide a temporary tool that serves as a “fix” to reduce the exploitation risk. This temporary workaround disables the Remote Install Agent functionality within the Apex One Management Console. So, administrators are unable to deploy agents remotely by the console. However, other agent installation methods, like UNC path or agent package deployment, still work .

Trend Micro highly suggests that organizations impacted apply this fix right away. Also, restrict external access to the Apex One Management Console, especially if its IP address is exposed on the internet. To lower the attack surface, implement source IP restrictions – in addition, review remote access policies. It’s critical.

It was expected that the formal patch would be released around mid-August 2025. Customers are encouraged to update to the latest versions when they’re available. That’s how to fully fix the vulnerability .

Security Context and Recommendations

CVE-2025-54948 shows the dangers associated with command injection vulnerabilities. This is especially true in security management software. Since Apex One is a very important endpoint protection platform, compromising its management console has widespread effects on security. After gaining control, attackers disable and manipulate endpoint agents, evade detection or conduct further attacks inside the network.

If your organization uses Trend Micro Apex One on-premise installations, you should:

• Apply the fix tool that’s provided to lessen the exploitation risk as soon as possible.
• Limit network access to the Apex One Management Console. Give access only to trusted IP addresses.
• Watch logs and network traffic for any strange activity related to the management console.
• Prepare to deploy the official patch when it comes out.
• Look at and strengthen perimeter defenses along with access controls that surround critical security infrastructure.

Consider the principle of least privilege as well as network segmentation. This minimizes the damage of any potential compromise of management consoles and similar critical systems .

Technical Details

Under CWE-78, the vulnerability is classified as OS Command Injection. This weakness takes place when untrusted input is put together into system commands without proper checking or validation. With this problem, the Apex One console backend isn’t validating user input before making system calls. This lets remote attackers run commands with the privileges of the IUSR account, which likely has enough rights to significantly impact the system .

The management console being open on common TCP ports (8080 and 4343) raises the risk. This is particularly true if these ports are open from untrusted networks. As the vulnerability is pre-authenticated, no credentials are required. It is easier for attackers to exploit if access is open .

Conclusion

CVE-2025-54948 is a very serious security weakness in Trend Micro Apex One’s on-premise management console. This vulnerability allows unauthenticated remote command injection along with code execution. Because of its high CVSS score, active exploitation attempts, and the critical role Apex One plays in endpoint security, it’s essential to handle mitigation and patching right away. To protect their environments until the official patch is deployed, organizations need to follow vendor guidance, limit access as well as watch for exploitation attempts .

FAQ

What exactly is CVE-2025-54948?

CVE-2025-54948 is a severe security flaw in Trend Micro Apex One, allowing attackers to remotely inject also execute commands on the affected system without needing to log in.

Which versions of Apex One are affected?

The on-premise versions of Trend Micro Apex One Management Server are affected. Specifically, versions 20216 and earlier, alongside Management Server Version 14039 and earlier.

What ports should I be concerned about?

The Apex One Management Console typically communicates on TCP ports 8080 and 4343. Make sure these ports are appropriately secured.

How do I protect myself?

Apply the temporary fix tool supplied by Trend Micro immediately. Also, restrict network access to the Apex One Management Console and plan to apply the official patch upon release.

What sort of damage is the system potentially vulnerable to?

Attackers gaining control are able to disable and manipulate endpoint agents, evade detection, conduct further attacks inside the network, steal your sensitive data, cause full system compromise, or disrupt your security monitoring.

Resources & References:

1. https://www.helpnetsecurity.com/2025/08/06/trend-micro-apex-one-flaws-exploted-in-the-wild-cve-2025-54948-cve-2025-54987/
2. https://thehackernews.com/2025/08/trend-micro-confirms-active.html
3. https://success.trendmicro.com/en-US/solution/KA-0020652
4. https://www.aha.org/h-isac-white-reports/2025-08-07-h-isac-tlp-white-threat-bulletin-trend-micro-discloses-two-exploited-critical-flaws-cve-2025
5. https://www.cve.org/CVERecord?id=CVE-2025-54948