CVE-2018-0686: Neo Debun Imap

High severity, CVSS 8.8. EPSS: 1.5% chance of exploitation in the next 30 days.

Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R4.0 and earlier, Denbun IMAP version V3.3I R4.0 and earlier) allows remote authenticated attackers to upload and execute any executable files via unspecified vectors.

Affected products

• Neo Debun Imap: up to and including 3.3i_r4.0
• Neo Debun Pop: up to and including 3.3p_r4.0

Published 2018-11-15. Last modified 2026-06-17.