Actively exploited in the wild. This CVE is on the CISA Known Exploited Vulnerabilities list — treat remediation as urgent. Federal remediation due by 8 Sep 2025.
Apex OneApplication · Trendmicro

CVE-2025-54948

CRITICAL · 9.8 CVSS v3.1 Published 2025-08-05
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
100/100
Remediation priority · Urgent
In the wild Remotely reachable No privileges Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A critical pre-authentication file upload vulnerability in the Trend Micro Apex One on-premise management console allows remote attackers to upload malicious code and execute arbitrary commands on affected installations without requiring valid credentials.

MitigationApply the vendor-provided security patch from Trend Micro immediately. If a patch is unavailable, restrict network access to the management console, disable unnecessary exposure to the internet, and implement WAF rules to block suspicious upload requests.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Apex OneApplication
Affected:= 2019

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Apex One installation
    Check for Trend Micro Apex One in installed programs (Windows: Add/Remove Programs, Linux: rpm/dpkg package list). Look for service processes like 'Apex One' or 'TmListen' running.
    Affected if Apex One software is present on the system
  2. Identify installed version
    Open the Apex One management console and navigate to Help > About, or check the version via the installer properties. On Windows, check registry key HKLM\SOFTWARE\TrendMicro\Apex One or the installation log files.
    Affected if Version is exactly 2019 (the affected version)
  3. Verify management console accessibility
    Check if port 4343 (default Apex One console port) or custom configured ports are listening and accessible from network. Use 'netstat -an | findstr 4343' or similar to identify listening status.
    Affected if Management console port is open and reachable from untrusted networks
  4. Check authentication configuration
    Review the Apex One management console authentication settings. Verify whether anonymous or pre-authentication upload endpoints are enabled by examining web server configuration files in the Apex One installation directory.
    Affected if Management console allows unauthenticated or pre-authenticated file upload operations
  5. Inspect upload functionality exposure
    Examine the web application endpoints under the management console URL path. Look for upload-related URIs that do not require valid session tokens. Check IIS/Apache configuration if reverse proxy is used.
    Affected if File upload endpoints are accessible without authentication

You are affected if Apex One version 2019 is installed AND the management console is network-accessible with pre-authentication upload capabilities exposed.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Patch available Apply the vendor patch
Interim mitigation

Apply the vendor-provided security patch from Trend Micro immediately. If a patch is unavailable, restrict network access to the management console, disable unnecessary exposure to the internet, and implement WAF rules to block suspicious upload requests.

Fix this in Apex One Exploited in the wild — priority engagement
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,750
Get it fixed fast

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-54948 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-54948 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data