CVE-2022-44654Network attack vector

Service interruption via missing /SAFESEH protection

Published Nov 21, 2022 · Updated Apr 29, 2025

Missing memory protection in Trend Micro Apex One 14.0 before 14.0.0.11126 allows remote attackers to interrupt endpoint protection. The monitor-engine component is compiled without /SAFESEH, leaving its structured exception handlers without safe-handler validation. SaaS builds before 14.0.11789 are also affected; exploitation requires physical or remote access to a vulnerable Windows machine, and the reported consequence is limited to service interruption.

CVSS severity7.5
High
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing memory protection in Trend Micro Apex One 14.0 before 14.0.0.11126 allows remote attackers to interrupt endpoint protection. The monitor-engine component is compiled without /SAFESEH, leaving its structured exception handlers without safe-handler validation. SaaS builds before 14.0.11789 are also affected; exploitation requires physical or remote access to a vulnerable Windows machine, and the reported consequence is limited to service interruption.

The record

CVE
CVE-2022-44654
Published
Nov 21, 2022
Updated
Apr 29, 2025
Vendor
Trend Micro
Product
Trend Micro Apex One
Classifications
CWE-122, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 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=On Premise (14.0) <14.0.0.11126
  2. Affected versionversion=SaaS (14.0) <14.0.11789

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

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

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5Trend MicroCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5CISA ADP VulnrichmentCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1499.004Application or System Exploitation

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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