[原文]Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), and ONS 15454 SD before 4.1(3) allows remote attackers to cause a denial of service (reset) by not sending the ACK portion of the TCP three-way handshake and sending an invalid response instead.
Cisco ONS 15000 Series contains a flaw that may allow a remote denial of service. The issue is triggered when specially crafted TCP packets are directed to port 1080, and will result in loss of availability for the platform.
Upgrade to version indicated in vendor advisory or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.