CVE-2025-52373: Hmailserver

Medium severity, CVSS 4.6. EPSS: 0.3% chance of exploitation in the next 30 days.

Use of hardcoded cryptographic key in BlowFish.cpp in hMailServer 5.8.6 and 5.6.9-beta allows attacker to decrypt passwords used in database connections from hMailServer.ini config file.

Affected products

• Hmailserver Hmailserver: version 5.6.9 only; version 5.8.6 only

Published 2025-07-21. Last modified 2026-06-17.