CVE-2021-32463

System-privileged file deletion via incorrect permissions

Published Jul 20, 2021 · Updated Aug 3, 2024

Incorrect permission assignment in Trend Micro Apex One 2019 and Worry-Free Business Security 10.0 SP1 allows local users to delete files. The Security Agent service assigns incorrect permissions to a critical resource, allowing low-privileged code to alter or remove it and interrupt the service. Low-privileged code execution on an affected Windows host is required; system-privileged file deletion can stop endpoint protection.

CVSS severity7.8
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permission assignment in Trend Micro Apex One 2019 and Worry-Free Business Security 10.0 SP1 allows local users to delete files. The Security Agent service assigns incorrect permissions to a critical resource, allowing low-privileged code to alter or remove it and interrupt the service. Low-privileged code execution on an affected Windows host is required; system-privileged file deletion can stop endpoint protection.

The record

CVE
CVE-2021-32463
Published
Jul 20, 2021
Updated
Aug 3, 2024
Vendor
Trend Micro
Product
Trend Micro Worry-Free Business Security
Classifications
CWE-732, T1489
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 20, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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, Services (SaaS)

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Trend Micro · Trend Micro Worry-Free Business Securityversion=10.0 SP1, Services (SaaS)
Trend Micro · Trend Micro Apex Oneversion=2019, SaaS

Published CVSS scores

7.2NIST NVDAV:L/AC:L/Au:N/C:C/I:C/A:C
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.1Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
T1489Service Stop

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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