{"id":"CVE-2026-118148","kind":"vulnerability","aliases":["CVE-2026-118148"],"related":[],"title":"Active Directory Domain Services: improper authentication lets an attacker gain privileges","description":"Improper authentication in Active Directory Domain Services allows an authorized attacker to elevate privileges over a network.","summary":"Active Directory Domain Services has an improper authentication flaw that lets an authorized attacker elevate privileges over the network. The sources give no affected version range, so the impact on a specific domain controller is unknown.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["active-directory","domain-controller","infrastructure","windows-server"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:19:35+00:00","first_seen_at":"2026-11-10T19:24:49+00:00","triaged_at":"2026-11-10T19:44:43+00:00","updated_at":"2026-11-10T19:44:43+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:44:43Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Active Directory Domain Services: improper authentication lets an attacker gain privileges","impact":"high","summary":"Active Directory Domain Services has an improper authentication flaw that lets an authorized attacker elevate privileges over the network. The sources give no affected version range, so the impact on a specific domain controller is unknown.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["active-directory","windows-server","domain-controller"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"authorized attacker gains higher privileges over the network","analyst_note":"Find the Microsoft advisory for CVE-2026-118148 to confirm affected Windows Server versions, the fixed update, and any mitigation.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Organizations running Active Directory Domain Services on Windows domain controllers. The sources do not state affected versions or configurations, and the attacker must already hold a valid account.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000659,"input_tokens":4487,"output_tokens":421,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the Microsoft advisory for CVE-2026-118148 to confirm affected Windows Server versions, the fixed update, and any mitigation.","search":"'-118148':14A,17A '-2026':13A,16A 'activ':1A,19B,28B,67C 'active-directori':18B 'affect':51B 'allow':71C 'attack':9A,41B,74C 'authent':6A,35B,65C 'author':40B,73C 'control':23B,61B 'cve':12A,15A 'directori':2A,20B,29B,68C 'domain':3A,22B,30B,60B,69C 'domain-control':21B 'elev':42B,76C 'flaw':36B 'gain':10A 'give':49B 'impact':56B 'improp':5A,34B,64C 'infrastructur':24B 'let':7A,38B 'network':46B,80C 'privileg':11A,43B,77C 'rang':53B 'server':27B 'servic':4A,31B,70C 'sourc':48B 'specif':59B 'unknown':63B 'version':52B 'window':26B 'windows-serv':25B","nicknames":[],"mitigations":[],"who_affected":"Organizations running Active Directory Domain Services on Windows domain controllers. The sources do not state affected versions or configurations, and the attacker must already hold a valid account.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["activedirectory","domaincontroller","high","infrastructure","windowsserver"],"campaign_type":null,"search_a":"'-118148':14A,17A '-2026':13A,16A 'activ':1A 'attack':9A 'authent':6A 'cve':12A,15A 'directori':2A 'domain':3A 'gain':10A 'improp':5A 'let':7A 'privileg':11A 'servic':4A","search_b":"'activ':19B,28B 'active-directori':18B 'affect':51B 'attack':41B 'authent':35B 'author':40B 'control':23B,61B 'directori':20B,29B 'domain':22B,30B,60B 'domain-control':21B 'elev':42B 'flaw':36B 'give':49B 'impact':56B 'improp':34B 'infrastructur':24B 'let':38B 'network':46B 'privileg':43B 'rang':53B 'server':27B 'servic':31B 'sourc':48B 'specif':59B 'unknown':63B 'version':52B 'window':26B 'windows-serv':25B","search_c":"'activ':67C 'allow':71C 'attack':74C 'authent':65C 'author':73C 'directori':68C 'domain':69C 'elev':76C 'improp':64C 'network':80C 'privileg':77C 'servic':70C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:35+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-118148","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118148","severity":null,"published_at":"2026-11-10T19:19:35+00:00","modified_at":"2026-11-10T19:19:36+00:00","first_seen_at":"2026-11-10T19:24:49+00:00","fetched_at":"2026-11-10T19:24:49+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}