CVE-2018-6221 json
An unvalidated software update vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow a man-in-the-middle attacker to tamper…
published 2018-03-15 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17982
- cvss
- 8.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 6.1%
- EPSS 6.1% chance of exploitation in 30 days, percentile 93%
- public exploits
- 1
- Exploit-DB
Summary
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.
Patch / fix
Timeline
- First public exploit (EDB-44166)
- Published
Exploit prediction
6.09% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-44166 Trend Micro Email Encryption Gateway 5.5 (Build 1111.00) - Multiple Vulnerabilities webapps, 2018-02-22
- coresecurity.com https://www.coresecurity.com/advisories/trend-micro-email-encryption-gateway-multiple-vulnerabilities referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Affected products
- Trend Micro Trend Micro Email Encryption Gateway
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
success.trendmicro.com
/solution/1119349
patch, vendor-advisory
-
exploit-db.com
/exploits/44166/
exploit, third-party-advisory, vdb-entry
-
coresecurity.com
/advisories/trend-micro-email-encryption-gateway-multiple-vulnerabilities
exploit, technical-description, third-party-advisory
Sources
- CVE List CVE-2018-6221
- NVD CVE-2018-6221
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