CVE-2025-20094

SYSTEM code execution via unprotected Windows messaging

Published Feb 6, 2025 · Updated Feb 12, 2025

Unprotected Windows messaging in Defense Platform Home Edition 3.9.51.x and earlier allows local users to execute code as SYSTEM. A privileged but unnamed product process accepts specially crafted Windows messages without verifying their source, exposing an alternate channel across the privilege boundary. Local low-privileged access is required; successful exploitation runs arbitrary code with SYSTEM privileges.

CVSS severity8.8
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unprotected Windows messaging in Defense Platform Home Edition 3.9.51.x and earlier allows local users to execute code as SYSTEM. A privileged but unnamed product process accepts specially crafted Windows messages without verifying their source, exposing an alternate channel across the privilege boundary. Local low-privileged access is required; successful exploitation runs arbitrary code with SYSTEM privileges.

The record

CVE
CVE-2025-20094
Published
Feb 6, 2025
Updated
Feb 12, 2025
Vendor
Humming Heads Inc.
Product
Defense Platform Home Edition
Classifications
CWE-422, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 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=Ver.3.9.51.x and earlier

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Humming Heads Inc. · Defense Platform Home Editionversion=Ver.3.9.51.x and earlier

Published CVSS scores

8.8JPCERT/CCCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/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-422Unprotected Windows Messaging Channel ('Shatter')
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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