{"id":"CVE-2017-0148","kind":"vulnerability","aliases":["CVE-2017-0148"],"related":[],"title":"Microsoft SMBv1 server: Microsoft SMBv1 Server Remote Code Execution Vulnerability","description":"The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to execute arbitrary code via crafted packets, aka \"Windows SMB Remote Code Execution Vulnerability.\" This vulnerability is different from those described in CVE-2017-0143, CVE-2017-0144, CVE-2017-0145, and CVE-2017-0146.","summary":"The SMBv1 server in Microsoft Windows lets remote attackers run arbitrary code by sending crafted packets. This is the flaw behind the EternalBlue exploit family, and CISA lists it as known exploited, with ransomware use noted in the sources.","severity":"critical","cvss":9.3,"epss":0.99356,"exploited":true,"exploited_at":"2022-04-06T00:00:00+00:00","products":[{"name":"Microsoft SMBv1 server","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","file-servers","infrastructure","ransomware","smb","windows"],"not_affected_if":["patched-systems","smbv1-disabled"],"how_to_check":null,"fix":"Apply the Microsoft updates for CVE-2017-0148 per vendor instructions, as CISA requires. Disable SMBv1 if it is not needed; the exact command is unknown from the sources.","status":"open","published_at":"2017-03-17T00:59:04+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:18:05+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"infrastructure","confidence":0.8,"triage":{"at":"2026-10-23T21:18:05Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft updates for CVE-2017-0148 per vendor instructions, as CISA requires. Disable SMBv1 if it is not needed; the exact command is unknown from the sources.","reach":"network","impact":"high","summary":"The SMBv1 server in Microsoft Windows lets remote attackers run arbitrary code by sending crafted packets. This is the flaw behind the EternalBlue exploit family, and CISA lists it as known exploited, with ransomware use noted in the sources.","category":"infrastructure","who_cares":["windows","smb","file-servers"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs arbitrary code on the Windows host over the network","analyst_note":"Find the affected Windows versions, the specific KB patch list and the SMBv1 disable command on the Microsoft Security Response Center advisory for CVE-2017-0148.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["smbv1-disabled","patched-systems"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000482,"input_tokens":2833,"output_tokens":398,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-0143':134C '-0144':137C '-0145':140C '-0146':144C '-0148':13A,16A '-2017':12A,15A,133C,136C,139C,143C '10':98C '1511':100C '1607':102C '2008':77C '2012':89C '2016':106C '7':83C '8.1':86C,95C 'aka':117C 'allow':107C 'arbitrari':38B,112C 'attack':36B,109C 'behind':48B 'cisa':54B 'code':8A,39B,113C,121C 'craft':42B,115C 'cve':11A,14A,132C,135C,138C,142C 'describ':130C 'differ':127C 'eternalblu':50B 'execut':9A,111C,122C 'exploit':20B,51B,59B 'famili':52B 'file':22B 'file-serv':21B 'flaw':47B 'gold':90C,99C 'infrastructur':24B 'known':58B 'let':34B 'list':55B 'microsoft':1A,4A,17A,32B,71C 'note':63B 'packet':43B,116C 'r2':80C,92C 'ransomwar':25B,61B 'remot':7A,35B,108C,120C 'rt':94C 'run':37B 'send':41B 'server':3A,6A,19A,23B,30B,69C,76C,88C,105C 'smb':26B,119C 'smbv1':2A,5A,18A,29B,68C 'sourc':66B 'sp1':81C,84C 'sp2':74C,78C 'use':62B 'via':114C 'vista':73C 'vulner':10A,123C,125C 'window':27B,33B,72C,75C,82C,85C,87C,93C,97C,104C,118C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2017-03-17T00:59:04+00:00","kev":{"dateAdded":"2022-04-06","dueDate":"2022-04-27","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Known"},"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2017-0148","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2017-0148","severity":null,"published_at":"2022-04-06T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T16:39:48+00:00","note":null},{"source":"epss","external_id":"CVE-2017-0148","url":"https://api.first.org/data/v1/epss?cve=CVE-2017-0148","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:45+00:00","fetched_at":"2026-10-23T19:13:45+00:00","note":null},{"source":"nvd","external_id":"CVE-2017-0148","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-0148","severity":null,"published_at":"2017-03-17T00:59:04+00:00","modified_at":"2026-06-17T00:57:10+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"}