CVE-2014-2140: Cisco Ons 15454 System Software

Medium severity, CVSS 5.0. EPSS: 1.8% chance of exploitation in the next 30 days.

Cisco ONS 15454 controller cards with software 9.6 and earlier allow remote attackers to cause a denial of service (card reset) via a TCP FIN attack that triggers file-descriptor exhaustion and a failure to open a CAL pipe, aka Bug ID CSCug97348.

Affected products

• Cisco Cisco Ons 15454 System Software: up to and including 9.6; version 9.0 only; version 9.1 only; version 9.2 only; version 9.2.1 only; version 9.2.2 only; …
• Cisco Ons 15454

Published 2014-04-12. Last modified 2026-06-17.