CVE-2017-6774: Cisco Asr 5000 Software

Medium severity, CVSS 5.0. EPSS: 1.2% chance of exploitation in the next 30 days.

A vulnerability in Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating system could allow an authenticated, remote attacker to overwrite or modify sensitive system files. The vulnerability is due to the inclusion of sensitive system files within specific FTP subdirectories. An attacker could exploit this vulnerability by overwriting sensitive configuration files through FTP. An exploit could allow the attacker to overwrite configuration files on an affected system. Cisco Bug IDs: CSCvd47739. Known Affected Releases: 21.0.v0.65839.

Affected products

• Cisco Asr 5000 Software: version 21.0.v0.65839 only

Published 2017-08-17. Last modified 2026-06-17.