CVE-2013-1122: Cisco Nexus 7000

Medium severity, CVSS 5.0. EPSS: 2.1% chance of exploitation in the next 30 days.

Cisco NX-OS on the Nexus 7000, when a certain Overlay Transport Virtualization (OTV) configuration is used, allows remote attackers to cause a denial of service (M1-Series module reload) via crafted packets, aka Bug ID CSCud15673.

Affected products

• Cisco Nexus 7000
• Cisco NX-OS: affected versions not specified; version 4.0 only; version 4.0(0)n1(1a) only; version 4.0(0)n1(2) only; version 4.0(0)n1(2a) only; version 4.0(1a)n1(1) only; …

Published 2013-02-13. Last modified 2026-06-16.