CVE-2006-1670: Cisco Ons 15310-Cl Series

High severity, CVSS 7.8. EPSS: 2.3% chance of exploitation in the next 30 days.

Control cards for Cisco Optical Networking System (ONS) 15000 series nodes before 20060405 allow remote attackers to cause a denial of service (memory exhaustion and possibly card reset) by sending an invalid response when the final ACK is expected, aka bug ID CSCei45910.

Affected products

• Cisco Ons 15310-Cl Series: any version
• Cisco Ons 15454 Mspp: any version
• Cisco Ons 15454 Mstp: any version
• Cisco Ons 15600: any version
• Cisco Optical Networking Systems Software: version 1.0 only; version 1.1 only; version 1.1(0) only; version 1.1(1) only; version 1.3(0) only; version 3.0 only; …

Published 2006-04-07. Last modified 2026-06-16.