CVE-2017-6711: Cisco Ultra Services Framework

Critical severity, CVSS 9.1. EPSS: 1.6% chance of exploitation in the next 30 days.

A vulnerability in the Ultra Automation Service (UAS) of the Cisco Ultra Services Framework could allow an unauthenticated, remote attacker to gain unauthorized access to a targeted device. The vulnerability is due to an insecure default configuration of the Apache ZooKeeper service used by the affected software. An attacker could exploit this vulnerability by accessing the affected device through the orchestrator network. An exploit could allow the attacker to gain access to ZooKeeper data nodes (znodes) and influence the behavior of the system's high-availability feature. This vulnerability affects all releases of Cisco Ultra Services Framework UAS prior to Releases 5.0.3 and 5.1. Cisco Bug IDs: CSCvd29395.

Affected products

• Cisco Ultra Services Framework: up to and including 5.0.2

Published 2017-07-06. Last modified 2026-06-17.