{"id":"CVE-2026-119948","kind":"vulnerability","aliases":["CVE-2026-119948"],"related":[],"title":"Windows Active Directory: stack overflow lets an authorized user run code","description":"Stack-based buffer overflow in Windows Active Directory allows an authorized attacker to execute code over a network.","summary":"A stack-based buffer overflow in Windows Active Directory can be triggered over the network by an attacker who already holds valid access. A successful attack lets the attacker execute code on the affected domain controller or directory server.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["active-directory","domain-controllers","infrastructure","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:20:18+00:00","first_seen_at":"2026-11-10T19:25:04+00:00","triaged_at":"2026-11-10T19:44:29+00:00","updated_at":"2026-11-10T19:44:29+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-10T19:44:29Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"network","title":"Windows Active Directory: stack overflow lets an authorized user run code","impact":"high","summary":"A stack-based buffer overflow in Windows Active Directory can be triggered over the network by an attacker who already holds valid access. A successful attack lets the attacker execute code on the affected domain controller or directory server.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","active-directory","domain-controllers"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"Attacker runs code on a directory server over the network","analyst_note":"Check the NVD entry and Microsoft's security update guide for affected Windows builds, fixed KB numbers and any required configuration.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Organizations running Windows Active Directory domain services, especially domain controllers, are the systems to look at. The sources do not name affected Windows builds or whether any non-default configuration is required.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000658,"input_tokens":4488,"output_tokens":418,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check the NVD entry and Microsoft's security update guide for affected Windows builds, fixed KB numbers and any required configuration.","search":"'-119948':14A,17A '-2026':13A,16A 'access':49B 'activ':2A,19B,34B,73C 'active-directori':18B 'affect':60B 'allow':75C 'alreadi':46B 'attack':44B,52B,55B,78C 'author':8A,77C 'base':29B,68C 'buffer':30B,69C 'code':11A,57B,81C 'control':23B,62B 'cve':12A,15A 'directori':3A,20B,35B,64B,74C 'domain':22B,61B 'domain-control':21B 'execut':56B,80C 'hold':47B 'infrastructur':24B 'let':6A,53B 'network':41B,84C 'overflow':5A,31B,70C 'run':10A 'server':65B 'stack':4A,28B,67C 'stack-bas':27B,66C 'success':51B 'trigger':38B 'user':9A 'valid':48B 'window':1A,25B,33B,72C","nicknames":[],"mitigations":[],"who_affected":"Organizations running Windows Active Directory domain services, especially domain controllers, are the systems to look at. The sources do not name affected Windows builds or whether any non-default configuration is required.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["activedirectory","domaincontrollers","high","infrastructure","windows"],"campaign_type":null,"search_a":"'-119948':14A,17A '-2026':13A,16A 'activ':2A 'author':8A 'code':11A 'cve':12A,15A 'directori':3A 'let':6A 'overflow':5A 'run':10A 'stack':4A 'user':9A 'window':1A","search_b":"'access':49B 'activ':19B,34B 'active-directori':18B 'affect':60B 'alreadi':46B 'attack':44B,52B,55B 'base':29B 'buffer':30B 'code':57B 'control':23B,62B 'directori':20B,35B,64B 'domain':22B,61B 'domain-control':21B 'execut':56B 'hold':47B 'infrastructur':24B 'let':53B 'network':41B 'overflow':31B 'server':65B 'stack':28B 'stack-bas':27B 'success':51B 'trigger':38B 'valid':48B 'window':25B,33B","search_c":"'activ':73C 'allow':75C 'attack':78C 'author':77C 'base':68C 'buffer':69C 'code':81C 'directori':74C 'execut':80C 'network':84C 'overflow':70C 'stack':67C 'stack-bas':66C 'window':72C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:20:18+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-2026-119948","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119948","severity":null,"published_at":"2026-11-10T19:20:18+00:00","modified_at":"2026-11-10T19:20:18+00:00","first_seen_at":"2026-11-10T19:25:04+00:00","fetched_at":"2026-11-10T19:25:04+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"}