CVE-1999-0682: Microsoft Exchange Server

Medium severity, CVSS 5.0. EPSS: 26.1% chance of exploitation in the next 30 days.

Microsoft Exchange 5.5 allows a remote attacker to relay email (i.e. spam) using encapsulated SMTP addresses, even if the anti-relaying features are enabled.

Affected products

• Microsoft Exchange Server: version 5.5 only

Published 1999-08-06. Last modified 2026-06-16.