CVE-1999-0419

Medium CVSS 5

Published 1999-03-01 · last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-1999-0419, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

When the Microsoft SMTP service attempts to send a message to a server and receives a 4xx error code, it quickly and repeatedly attempts to redeliver the message, causing a denial of service.

Sources

NVD record for CVE-1999-0419

CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:P