CVE-2000-0478: Symantec Norton Antivirus

Medium severity, CVSS 5.0. EPSS: 2% chance of exploitation in the next 30 days.

In some cases, Norton Antivirus for Exchange (NavExchange) enters a "fail-open" state which allows viruses to pass through the server.

Affected products

• Symantec Norton Antivirus: version 1.5 only; version 2.0 only

Published 2000-06-14. Last modified 2026-06-16.