CVE-2022-40709

Information disclosure via Hooking Monitor buffer over-read

Published Sep 28, 2022 · Updated Nov 20, 2024

Out-of-bounds read in Trend Micro Deep Security 20 for Windows allows local users to disclose sensitive information from agent memory. The User Mode Hooking Monitor Engine fails to validate user-supplied data before reading past the end of an allocated buffer. Low-privileged code execution is required; the read exposes memory and can support a separate exploit chain to SYSTEM code execution.

CVSS severity4.4
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Trend Micro Deep Security 20 for Windows allows local users to disclose sensitive information from agent memory. The User Mode Hooking Monitor Engine fails to validate user-supplied data before reading past the end of an allocated buffer. Low-privileged code execution is required; the read exposes memory and can support a separate exploit chain to SYSTEM code execution.

The record

CVE
CVE-2022-40709
Published
Sep 28, 2022
Updated
Nov 20, 2024
Vendor
Trend Micro
Product
Trend Micro Deep Security
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Nov 20, 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=20

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Trend Micro · Trend Micro Deep Securityversion=20

Published CVSS scores

3.3NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.4Trend MicroCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L

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.

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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-125Out-of-bounds Read

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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