Preview Tool

Cisco Bug: CSCus50625 - Cisco Headend Denial of Service (DOS) Vulnerability

Last Modified

Aug 06, 2018

Products (1)

  • Headend System Releases

Known Affected Releases


Description (partial)

A vulnerability in the Transmission Control Protocol (TCP) module of the Cisco Headend System product could allow an 
unauthenticated, remote attacker to disable TCP ports and cause an increase in Central Processing Unit (CPU) and memory 

The vulnerability is due to a lack of rate limiting in the TCP listen application. An attacker could exploit this vulnerability by with a 
TCP SYN flood or denial-of-service (DOS) traffic stream. An exploit could allow the attacker to block TCP listen ports and exhaust 
system resources like CPU and memory.

Device running with default configuration running an affected version of software.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.