{"id":"CVE-2018-0180","kind":"vulnerability","aliases":["CVE-2018-0180"],"related":[],"title":"Cisco IOS Software: Cisco IOS Software Denial-of-Service Vulnerability","description":"Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS) condition. These vulnerabilities affect Cisco devices that are running Cisco IOS Software Release 15.4(2)T, 15.4(3)M, or 15.4(2)CG and later. Cisco Bug IDs: CSCuy32360, CSCuz60599.","summary":"A flaw in the Login Enhancements (Login Block) feature of Cisco IOS Software lets an unauthenticated remote attacker force the device to reload. The attacker gets a denial of service, not code execution.","severity":"high","cvss":7.1,"epss":0.04935,"exploited":true,"exploited_at":"2022-03-03T00:00:00+00:00","products":[{"name":"Cisco IOS Software","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["cisco","exploited","infrastructure","ios","network-gear"],"not_affected_if":["default-config","login-enhancements-disabled"],"how_to_check":null,"fix":"Apply the updates per the Cisco vendor instructions; the sources do not name a fixed version.","status":"open","published_at":"2018-03-28T22:29:01+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:24:33+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:24:33Z","model":"claude-haiku-5-5","output":{"fix":"Apply the updates per the Cisco vendor instructions; the sources do not name a fixed version.","reach":"network","impact":"low","summary":"A flaw in the Login Enhancements (Login Block) feature of Cisco IOS Software lets an unauthenticated remote attacker force the device to reload. The attacker gets a denial of service, not code execution.","category":"infrastructure","who_cares":["cisco","ios","network-gear"],"confidence":0.6,"needs_auth":"no","worst_case":"Device reloads repeatedly, causing network service outage","analyst_note":"Find the Cisco advisory for CVE-2018-0180 to confirm affected IOS versions, fixed releases, and the exact Login Block config that enables the flaw.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["login-enhancements-disabled","default-config"],"user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"high"},"cost_usd":0.000456,"input_tokens":2860,"output_tokens":340,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-0180':14A,17A '-2018':13A,16A '15.4':108C,111C,115C '2':109C,116C '3':112C 'affect':86C,98C 'allow':75C 'attack':45B,52B,79C 'block':35B,68C 'bug':121C 'cg':117C 'cisco':1A,4A,18A,21B,38B,71C,99C,104C,120C 'code':59B 'condit':95C 'could':74C 'cscuy32360':123C 'cscuz60599':124C 'cve':12A,15A 'denial':8A,55B,91C 'denial-of-servic':7A 'devic':48B,100C 'dos':94C 'enhanc':33B,66C 'execut':60B 'exploit':22B 'featur':36B,69C 'flaw':29B 'forc':46B 'gear':27B 'get':53B 'id':122C 'infrastructur':23B 'io':2A,5A,24B,39B,72C,105C 'ios':19A 'later':119C 'let':41B 'login':32B,34B,65C,67C 'm':113C 'multipl':61C 'network':26B 'network-gear':25B 'releas':107C 'reload':50B,83C 'remot':44B,78C 'result':88C 'run':103C 'servic':10A,57B,93C 'softwar':3A,6A,40B,73C,106C 'software':20A 'system':87C 'trigger':81C 'unauthent':43B,77C 'vulner':11A,62C,97C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2018-03-28T22:29:01+00:00","kev":{"dateAdded":"2022-03-03","dueDate":"2022-03-17","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2018-0180","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-0180","severity":null,"published_at":"2022-03-03T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T17:39:58+00:00","note":null},{"source":"epss","external_id":"CVE-2018-0180","url":"https://api.first.org/data/v1/epss?cve=CVE-2018-0180","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:44+00:00","fetched_at":"2026-10-23T19:13:44+00:00","note":null},{"source":"nvd","external_id":"CVE-2018-0180","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-0180","severity":null,"published_at":"2018-03-28T22:29:01+00:00","modified_at":"2026-06-17T01:30:01+00:00","first_seen_at":"2026-10-23T21:57:35+00:00","fetched_at":"2026-10-23T21:57:35+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}