CVE-2015-4195: Cisco IOS XR

Medium severity, CVSS 4.0. EPSS: 1.6% chance of exploitation in the next 30 days.

Cisco IOS XR 5.1.1.K9SEC allows remote authenticated users to cause a denial of service (vty error, and SSH and TELNET outage) via a crafted disconnect action within an SSH session, aka Bug ID CSCul63127.

Affected products

• Cisco IOS XR: version 5.1.1.k9sec only

Published 2015-06-19. Last modified 2026-06-17.