CVE-2018-6221 describes an unvalidated software update vulnerability in Trend Micro Email Encryption Gateway 5.5, allowing a man-in-the-middle attacker to inject malicious code during updates. This vulnerability carries a CVSS score of 8.1 (HIGH), indicating a critical risk due to its network-based attack vector, high impact on confidentiality, integrity, and availability, and low attack complexity. While there is no evidence of active exploitation or inclusion in CISA's KEV catalog, an ExploitDB entry (EDB-44166) exists, and it has received minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.5CPE matchmatch criteria | cpe:2.3:a:trendmicro:email_encryption_gateway:5.5:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.