{"id":"CVE-2018-0179","kind":"vulnerability","aliases":["CVE-2018-0179"],"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 result is a denial of service on the router or switch.","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-ios","exploited","infrastructure","network-ops","routers","switches"],"not_affected_if":["default-config","login-enhancements-disabled"],"how_to_check":null,"fix":"Apply the update from Cisco's advisory for CVE-2018-0179 (the sources do not name the fixed version). Check the IOS version with 'show 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 update from Cisco's advisory for CVE-2018-0179 (the sources do not name the fixed version). Check the IOS version with 'show 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 result is a denial of service on the router or switch.","category":"infrastructure","who_cares":["cisco-ios","routers","switches","network-ops"],"confidence":0.6,"needs_auth":"no","worst_case":"Remote attacker reloads the device, causing network outage","analyst_note":"Find the fixed IOS versions and the 'login block' configuration check in the Cisco advisory for CVE-2018-0179; the sources list affected and fixed versions only as '?'.","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":0.00047,"input_tokens":2860,"output_tokens":369,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-0179':14A,17A '-2018':13A,16A '15.4':113C,116C,120C '2':114C,121C '3':117C 'affect':91C,103C 'allow':80C 'attack':48B,84C 'block':38B,73C 'bug':126C 'cg':122C 'cisco':1A,4A,18A,22B,41B,76C,104C,109C,125C 'cisco-io':21B 'condit':100C 'could':79C 'cscuy32360':128C 'cscuz60599':129C 'cve':12A,15A 'denial':8A,58B,96C 'denial-of-servic':7A 'devic':51B,105C 'dos':99C 'enhanc':36B,71C 'exploit':24B 'featur':39B,74C 'flaw':32B 'forc':49B 'id':127C 'infrastructur':25B 'io':2A,5A,23B,42B,77C,110C 'ios':19A 'later':124C 'let':44B 'login':35B,37B,70C,72C 'm':118C 'multipl':66C 'network':27B 'network-op':26B 'op':28B 'releas':112C 'reload':53B,88C 'remot':47B,83C 'result':55B,93C 'router':29B,63B 'run':108C 'servic':10A,60B,98C 'softwar':3A,6A,43B,78C,111C 'software':20A 'switch':30B,65B 'system':92C 'trigger':86C 'unauthent':46B,82C 'vulner':11A,67C,102C","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-2018-0179","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-0179","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":"2026-10-25T16:39:49+00:00","note":null},{"source":"epss","external_id":"CVE-2018-0179","url":"https://api.first.org/data/v1/epss?cve=CVE-2018-0179","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-2018-0179","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-0179","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"}