CVE-2018-6223
A missing authentication for appliance registration vulnerability in Trend Micro Email Encryption...
A missing authentication for appliance registration vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to manipulate the registration process of the product to reset configuration parameters.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A missing authentication for appliance registration vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to manipulate the registration process of the product to reset configuration parameters.
- Record
CVE-2018-6223- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-306
- Updated
- 2026-11-02
CVE List No score
A missing authentication for appliance registration vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to manipulate the registration process of the product to reset configuration parameters.
- Record
CVE-2018-6223- Updated
- 2026-11-02
EUVDEUVD-2018-17984 No score
A missing authentication for appliance registration vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to manipulate the registration process of the product to reset configuration parameters.
- Record
EUVD-2018-17984- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mrgc-j2hj-4qq8
A missing authentication for appliance registration vulnerability in Trend Micro Email Encryption...
A missing authentication for appliance registration vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to manipulate the registration process of the product to reset configuration parameters.
- Record
GHSA-mrgc-j2hj-4qq8- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Trend Micro Email Encryption Gateway 5.5 (Build 1111.00) - Multiple Vulnerabilities | 2018-02-22 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-6223 is a critical vulnerability (CVSS 9.8) in Trend Micro Email Encryption Gateway, published March 15, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 10.0%, the 95th percentile. No source names a fixed version.