{"id":"CVE-2018-0156","aliases":[],"url":"https://o3.security/vulnerability/CVE-2018-0156","summary":"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,…","details":"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":"2018-03-28T22:00:00.000Z","modified":"2026-01-12T21:54:00.542Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.08599,"percentile":0.94725,"asOf":"2026-09-08"},"cisaKev":null,"exploitsKnown":2,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04"},{"type":"WEB","url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-smi"},{"type":"WEB","url":"http://www.securitytracker.com/id/1040596"},{"type":"WEB","url":"http://www.securityfocus.com/bid/103569"},{"type":"WEB","url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0156"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-01-12T21:54:00.542Z"}}