What is CVE-2015-0721?

CVE-2015-0721 is a high-severity vulnerability in Cisco Nexus 1000v For Microsoft Hyper-V, classified under CWE-264. CVSS score: 8.0/10. Published 2016-10-06.

How severe is CVE-2015-0721?

High severity. CVSS v3 base score is 8.0 out of 10.

Vulnerability in Cisco Nexus 1000v For Microsoft Hyper-V

CVE-2015-0721

Cisco NX-OS 4.0 through 7.3 on Multilayer Director and Nexus 1000V, 2000, 3000, 3500, 4000, 5000, 5500, 5600, 6000, 7000, 7700, and 9000 devices allows remote authenticated users to bypass intended AAA restrictions and obtain privileged CLI access via crafted parameters in an SSH connection negotiation, aka Bug IDs CSCum35502, CSCuw78669, CSCuw79754, and CSCux88492.

Published 2016-10-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.028 (86.0th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-264

References

www.securityfocus.com/bid/93410 (vdb-entry)
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005… (vendor-advisory, Vendor Advisory)
www.securitytracker.com/id/1036947 (vdb-entry)

Frequently asked questions

What is CVE-2015-0721?: CVE-2015-0721 is a high-severity vulnerability in Cisco Nexus 1000v For Microsoft Hyper-V, classified under CWE-264. CVSS score: 8.0/10. Published 2016-10-06.
How severe is CVE-2015-0721?: High severity. CVSS v3 base score is 8.0 out of 10.