CVE-2016-6422: Cisco IOS

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

Cisco IOS 12.2(33)SXJ9 on Supervisor Engine 32 and 720 modules for 6500 and 7600 devices mishandles certain operators, flags, and keywords in TCAM share ACLs, which allows remote attackers to bypass intended access restrictions by sending packets that should have been recognized by a filter, aka Bug ID CSCuy64806.

Affected products

• Cisco IOS: version 12.2(33)sxj9 only

Published 2016-10-06. Last modified 2026-06-17.