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.
Severity
CVSS 3.0
6.5 medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS
3.9% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)