An Insecure Update via HTTP vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to eavesdrop and tamper with…

published 2018-03-15 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17980

cvss: 6.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 3.9%; EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits: 1; Exploit-DB

An Insecure Update via HTTP vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow an attacker to eavesdrop and tamper with certain types of update data.

Timeline

2018-02-22 First public exploit (EDB-44166)
2018-03-15 Published

Exploit prediction

3.88% chance of exploitation in the next 30 days, higher than 90% 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	6.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
NVD	2.0	6.4	AV:N/AC:L/Au:N/C:P/I:P/A:N

Affected products

Trend Micro Trend Micro Email Encryption Gateway

Classification

Weakness

CWE-295 Improper Certificate Validation

References

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
success.trendmicro.com /solution/1119349
vendor-advisory

Sources

CVE List CVE-2018-6219
NVD CVE-2018-6219

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary