CVE-2025-49154

Low-privilege file overwrite via improper access control

Published Jun 17, 2025 · Updated Jun 17, 2025

Improper access control in Trend Micro Apex One and Worry-Free Business Security allows local users to overwrite memory-mapped files. Trend Micro identifies the exposed locus only as key memory-mapped files and has not published the specific access-control operation that permits their overwrite. Exploitation requires local low-privileged code execution; successful writes can undermine the installation's security and stability.

CVSS severity8.7
High
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Trend Micro Apex One and Worry-Free Business Security allows local users to overwrite memory-mapped files. Trend Micro identifies the exposed locus only as key memory-mapped files and has not published the specific access-control operation that permits their overwrite. Exploitation requires local low-privileged code execution; successful writes can undermine the installation's security and stability.

The record

CVE
CVE-2025-49154
Published
Jun 17, 2025
Updated
Jun 17, 2025
Vendor
Trend Micro
Product
Trend Micro Worry-Free Business Security
Classifications
CWE-284, T1562.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0 SP1 <2514

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Trend Micro · Trend Micro Worry-Free Business Securityversion=10.0 SP1 <2514
Trend Micro · Trend Micro Apex Oneversion=2019 (14.0) <14.0.0.14002
Trend Micro · Trend Micro Apex One as a Serviceversion=SaaS <14.0.14492

Published CVSS scores

8.7Trend MicroCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1562.001Impair Defenses: Disable or Modify Tools

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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