CVE-2015-6277: Cisco 1000v

Medium severity, CVSS 6.1. EPSS: 0.9% chance of exploitation in the next 30 days.

The ARP implementation in Cisco NX-OS on Nexus 1000V devices for VMware vSphere 5.2(1)SV3(1.4), Nexus 3000 devices 7.3(0)ZD(0.47), Nexus 4000 devices 4.1(2)E1, Nexus 9000 devices 7.3(0)ZD(0.61), and MDS 9000 devices 7.0(0)HSK(0.353) and SAN-OS NX-OS on MDS 9000 devices 7.0(0)HSK(0.353) allows remote attackers to cause a denial of service (ARP process restart) via crafted packet-header fields, aka Bug ID CSCut25292.

Affected products

• Cisco 1000v: version 5.2(1)sv3(1.4) only
• Cisco Mds 9000
• Cisco NX-OS: version 7.3(0)zd(0.47) only; version 4.1(2)e1 only; version 7.0(0)hsk(0.353) only; version 7.3(0)zd(0.61) only
• Cisco San-OS: version 7.0(0)hsk(0.353) only

Published 2015-09-02. Last modified 2026-06-17.