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.
- Score
- CVSS 3.1 7.5 High
- Status
- Analyzed - psirt@cisco.com
- Published
- 2018-03-28
- Last modified
- 2026-01-12
- Known exploited (CISA KEV)
- since 2022-03-03, action due 2022-03-17: Apply updates per vendor instructions.
- Weaknesses
- CWE-20, CWE-399
Affected products
References
- http://www.securityfocus.com/bid/103569
- http://www.securitytracker.com/id/1040596
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-smi
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0156
