CVE-2018-0156

A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted packet to an affected device on TCP port 4786. Only Smart Install client switches are affected. Cisco devices that are configured as a Smart Install director are not affected by this vulnerability. Cisco Bug IDs: CSCvd40673.

  • Published Mar 28, 2018
  • CVSS 7.5 high
  • 9.4% chance of exploitation in the next 30 days (EPSS)
  • In CISA's Known Exploited Vulnerabilities catalog

Affected software

CVE-2018-0156 at the National Vulnerability Database