CVE-2022-33158

Local SYSTEM code execution via permissive installer directory

Published Jul 29, 2022 · Updated Aug 3, 2024

Incorrect permissions in Trend Micro VPN 5.2.1026 and earlier allow local users to execute arbitrary code with SYSTEM privileges. The product installer assigns overly permissive access to a key directory; public advisories do not identify the directory or the privileged operation that consumes it. Exploitation requires the ability to run low-privileged code locally and results in arbitrary code execution as SYSTEM.

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

What happened

Incorrect permissions in Trend Micro VPN 5.2.1026 and earlier allow local users to execute arbitrary code with SYSTEM privileges. The product installer assigns overly permissive access to a key directory; public advisories do not identify the directory or the privileged operation that consumes it. Exploitation requires the ability to run low-privileged code locally and results in arbitrary code execution as SYSTEM.

The record

CVE
CVE-2022-33158
Published
Jul 29, 2022
Updated
Aug 3, 2024
Vendor
Trend Micro
Product
Trend Micro VPN
Classifications
CWE-552, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 29, 2022CVE 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=5.2.1026 and below

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Trend Micro · Trend Micro VPNversion=5.2.1026 and below

Published CVSS scores

7.8Trend Micro Zero Day InitiativeCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/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 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-552Files or Directories Accessible to External Parties
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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