CVE-2015-0718: Cisco NX-OS 4.0 through 6.1 on Nexus 1000V 3000, 4000, 5000, 6000, and 7000 devices and Unified Computing S...

Security readout for executives and security teams

This flaw can make certain Cisco NX-OS and UCS network platforms reload their TCP stack, causing a denial of service. The source bundle describes crafted TCP packets against a device with a TIME_WAIT TCP session. Evidence does not show active exploitation or a public exploit. Organizations with older Cisco Nexus 1000V, 3000, 4000, 5000, 6000, 7000, or UCS systems running NX-OS 4.0 through 6.1 may be exposed, especially where TCP services are reachable by untrusted networks. Treat as a network availability risk for legacy Cisco infrastructure. It is not KEV-listed in the bundle, but affected core switching or UCS environments could create business disruption if reachable and unremediated. Mitigation focus: Inventory Cisco Nexus and UCS platforms running NX-OS 4.0 through 6.1.; Review Cisco advisory cisco-sa-20160302-netstack for official fixed releases or mitigations.; Prioritize upgrades for internet-facing or broadly reachable network infrastructure..

Prepared

Jun 13, 2026, 21:06 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.