CVE-1999-0775

High CVSS 10

Published 1999-06-10 · last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-1999-0775, 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

Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets due to improper handling of the "established" keyword in an access list.

Sources

NVD record for CVE-1999-0775

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