CVE-1999-0162: Cisco IOS

Medium severity, CVSS 5.0. EPSS: 1.7% chance of exploitation in the next 30 days.

The "established" keyword in some Cisco IOS software allowed an attacker to bypass filtering.

Affected products

• Cisco IOS: version 11.2 only

Published 1998-09-01. Last modified 2026-06-16.