CVE-2016-1366: Cisco IOS XR

Medium severity, CVSS 6.5. EPSS: 1.4% chance of exploitation in the next 30 days.

The SCP and SFTP modules in Cisco IOS XR 5.0.0 through 5.2.5 on Network Convergence System 6000 devices use weak permissions for system files, which allows remote authenticated users to cause a denial of service (overwrite) via unspecified vectors, aka Bug ID CSCuw75848.

Affected products

• Cisco IOS XR: version 5.0.0 only; version 5.0.1 only; version 5.2.1 only; version 5.2.3 only; version 5.2.4 only; version 5.2.5 only

Published 2016-03-24. Last modified 2026-06-17.