CVE-2006-0447: E-Post Corporation Mail Server

High severity, CVSS 7.5. EPSS: 4.6% chance of exploitation in the next 30 days.

Multiple buffer overflows in E-Post Mail Server 4.10 and SPA-PRO Mail @Solomon 4.00 allow remote attackers to execute arbitrary code via a long username to the (1) AUTH PLAIN or (2) AUTH LOGIN SMTP commands, which is not properly handled by (a) EPSTRS.EXE or (b) SPA-RS.EXE; (3) a long username in the APOP POP3 command, which is not properly handled by (c) EPSTPOP4S.EXE or (d) SPA-POP3S.EXE; (4) a long IMAP DELETE command, which is not properly handled by (e) EPSTIMAP4S.EXE or (f) SPA-IMAP4S.EXE.

Affected products

• E-Post Corporation Mail Server: version 4.10 only; version enterprise_4.10 only
• E-Post Corporation Smtp Server: version 4.10 only; version enterprise_4.10 only
• E-Post Corporation Spa-Pro Mail Atsolomon: version 4.00 only; version enterprise_4.00 only

Published 2006-01-27. Last modified 2026-06-16.