CVE-2025-54948: Trend Micro Apex One OS Command Injection Vulnerability

CVE-2025-54948 is an OS command injection vulnerability in the on-premise Trend Micro Apex One Management Console. A pre-authenticated remote attacker could upload malicious code and execute commands on affected installations. This matters because the management console typically holds elevated privileges over endpoint security agents; successful abuse can give an attacker a foothold for further lateral movement or control of protected systems. Confirm all product-specific details against the vendor advisory.

How it works

The flaw is classified as CWE-78 (OS Command Injection). In products of this class, user-supplied input reaches an operating-system command interpreter without sufficient sanitization or parameterization. An attacker who can reach the vulnerable interface can craft input that causes the console process to run arbitrary commands under the privileges of the Apex One service account. The CISA summary states that the attack can be performed pre-authentication and can include uploading malicious code that is then executed. Exact request formats, parameters, or payloads are not provided here; treat any public proof-of-concept material with caution and validate behavior only in isolated lab environments against the vendor’s technical description.

Am I affected? How to find it in your systems

Trend Micro Apex One is commonly deployed as an on-premise management server that communicates with endpoint agents across Windows and mixed environments. Inventory steps:

• Locate all Apex One Management Console hosts (physical or virtual) by searching asset inventories, configuration-management databases, and network scans for the product’s typical service ports and process names.
• Record the installed product version and build; compare them directly to the fixed versions listed in the Trend Micro advisory for CVE-2025-54948. Public detail on exact affected version ranges is limited, so rely on the vendor list.
• Confirm the console is the on-premise edition; cloud-hosted variants may fall under different guidance (see BOD 22-01 notes below).
• Review web-server and application logs on the console for unexpected file-upload activity, anomalous command-line arguments, or connections from untrusted sources. Look for process-creation events that spawn shells or unexpected binaries under the Apex One service account. Absence of such telemetry does not prove safety; it only indicates no obvious exploitation has been observed yet.

How to remediate

Apply the vendor-supplied update or mitigation package for CVE-2025-54948 as the primary action. Follow the exact installation and verification steps published by Trend Micro. After patching:

• Restart the management console services and confirm the new version string.
• Re-validate agent connectivity and policy distribution to ensure the update did not disrupt operations.
• Harden the console host: restrict administrative access to a jump host or management VLAN, enforce multi-factor authentication for console logins, and run the service under a least-privilege account where the product allows it.
• If the product cannot be updated, CISA’s required action is to apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for any cloud components, or discontinue use of the product.

If you can't patch immediately

Until the vendor update can be installed, reduce exposure with compensating controls:

• Segment the management console so that only authorized administrative workstations and required agent subnets can reach it; block internet-facing access entirely.
• Place a web application firewall or reverse-proxy rule set in front of the console to drop or challenge unexpected upload and command-related requests; tune rules carefully to avoid breaking legitimate management traffic.
• Temporarily disable any non-essential remote-management or file-upload features if the product configuration permits it.
• Increase monitoring: forward console logs to a SIEM, alert on process creation, file writes in temporary directories, and outbound connections from the console host. Retain packet captures of console traffic for later forensic review if needed.

These steps lower risk but do not eliminate the underlying command-injection condition; schedule the official patch as soon as operationally feasible.

If your data may have been exposed

Command-injection flaws of this class can lead to full compromise of the management server and, by extension, the endpoints it controls. While ransomware use of this specific CVE is not documented, any successful exploitation should be treated as a potential breach. Review console and endpoint logs for indicators of unauthorized activity, isolate affected hosts, and follow your incident-response plan. Separately, individuals can run a free exposure scan of their email addresses against known breach data sets to determine whether personal credentials have appeared in prior incidents.