CVE-2007-5134: Cisco Catalyst 6500

Medium severity, CVSS 5.0. EPSS: 2.5% chance of exploitation in the next 30 days.

Cisco Catalyst 6500 and Cisco 7600 series devices use 127/8 IP addresses for Ethernet Out-of-Band Channel (EOBC) internal communication, which might allow remote attackers to send packets to an interface for which network exposure was unintended.

Affected products

• Cisco Catalyst 6500: any version
• Cisco Catalyst 6500 Ws-Svc-Nam-1: version 2.2(1a) only; version 3.1(1a) only
• Cisco Catalyst 6500 Ws-Svc-Nam-2: version 2.2(1a) only; version 3.1(1a) only
• Cisco Catalyst 6500 Ws-x6380-Nam: version 2.1(2) only; version 3.1(1a) only
• Cisco Catalyst 7600: any version
• Cisco Catalyst 7600 Ws-Svc-Nam-1: version 2.2(1a) only; version 3.1(1a) only
• Cisco Catalyst 7600 Ws-Svc-Nam-2: version 2.2(1a) only; version 3.1(1a) only
• Cisco Catalyst 7600 Ws-x6380-Nam: version 2.1(2) only; version 3.1(1a) only
• Cisco Catos: version 5.4(1) only; version 7.5(1) only; version 7.6(1) only

Published 2007-09-27. Last modified 2026-06-16.