SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to read the contents of emails encrypted for other users.
Exploitability
AV:NAC:LAT:PPR:LUI:NVulnerable System
VC:NVI:NVA:NSubsequent System
SC:HSI:NSA:N4.9/CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:NOther