9.3

CVE-2018-6221: trend micro trend micro email encryption gateway Improper Certificate Validation

CVSS: 9.3v2.0HighModified
Published 15-03-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-6221 is a high (CVSS 9.3) Improper Certificate Validation vulnerability in trend micro trend micro email encryption gateway. EPSS estimates a 6.09% chance of exploitation in the next 30 days, higher than 93.3% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
High · v2.0 (NVD)
EPSS score
6.09%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference, exploit-database

Timeline

  1. 15-03-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An unvalidated software update vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow a man-in-the-middle attacker to tamper with an update file and inject their own.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

6.09%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

0.00 pp

From 6.09% on 19-09-2026

19-09-202619-10-2026
EPSS score
6.09%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (coresecurity.com)

    Maturity: unknown

  • exploit-databasejspVerified

    Trend Micro Email Encryption Gateway 5.5 (Build 1111.00) - Multiple Vulnerabilities

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Trend micro1 product
Trendmicro1 product

2 vendors · 2 products

References

3 links