CVE-1999-1199

High CVSS 10

Published 1998-08-07 · last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-1999-1199, 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

Apache WWW server 1.3.1 and earlier allows remote attackers to cause a denial of service (resource exhaustion) via a large number of MIME headers with the same name, aka the "sioux" vulnerability.

Sources

NVD record for CVE-1999-1199

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