CVE-2022-44651

SYSTEM code execution via unlocked file operations

Published Nov 21, 2022 · Updated Apr 28, 2025

TOCTOU in Trend Micro Apex One 14.0 allows local users to execute arbitrary code as SYSTEM through the Security Agent on Windows. The Client Plug-in Service Manager performs file operations without proper locking, allowing a race between its check and use. Low-privileged code execution on the endpoint is required; successful exploitation grants SYSTEM privileges.

CVSS severity7.8
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

TOCTOU in Trend Micro Apex One 14.0 allows local users to execute arbitrary code as SYSTEM through the Security Agent on Windows. The Client Plug-in Service Manager performs file operations without proper locking, allowing a race between its check and use. Low-privileged code execution on the endpoint is required; successful exploitation grants SYSTEM privileges.

The record

CVE
CVE-2022-44651
Published
Nov 21, 2022
Updated
Apr 28, 2025
Vendor
Trend Micro
Product
Trend Micro Apex One
Classifications
CWE-367, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=On Premise (14.0) <14.0.0.11126
  2. Affected versionversion=SaaS (14.0) <14.0.11789

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Trend Micro · Trend Micro Apex Oneversion=On Premise (14.0) <14.0.0.11126; version=SaaS (14.0) <14.0.11789

Published CVSS scores

7.0CISA-ADPCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8Trend MicroCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 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-367Time-of-check Time-of-use (TOCTOU) Race Condition
T1068Exploitation for Privilege Escalation

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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