{"id":"CVE-2026-118106","kind":"vulnerability","aliases":["CVE-2026-118106"],"related":[],"title":"Microsoft SQL Server: heap overflow lets an unauthenticated network attacker run code","description":"Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.","summary":"A heap-based buffer overflow in Microsoft SQL Server lets an unauthorized attacker reach it over the network. Successful exploitation allows the attacker to execute code.","severity":"high","cvss":8.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["microsoft","sql-server","vendor","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:19:28+00:00","first_seen_at":"2026-11-10T19:24:47+00:00","triaged_at":"2026-11-10T19:34:48+00:00","updated_at":"2026-11-10T19:34:48+00:00","category":"vendor","confidence":0.5,"triage":{"at":"2026-11-10T19:34:48Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Microsoft SQL Server: heap overflow lets an unauthenticated network attacker run code","impact":"high","summary":"A heap-based buffer overflow in Microsoft SQL Server lets an unauthorized attacker reach it over the network. Successful exploitation allows the attacker to execute code.","audience":"businesses","category":"vendor","nicknames":[],"who_cares":["sql-server","windows","microsoft"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"Attacker executes code on the database server over the network","analyst_note":"Find the affected SQL Server versions and Microsoft's security update guidance at https://nvd.nist.gov/vuln/detail/CVE-2026-118106 and the Microsoft Security Response Center advisory.","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Organisations running Microsoft SQL Server reachable over a network. The sources do not name affected versions or preconditions beyond network reach and no authentication.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000661,"input_tokens":4486,"output_tokens":424,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the affected SQL Server versions and Microsoft's security update guidance at https://nvd.nist.gov/vuln/detail/CVE-2026-118106 and the Microsoft Security Response Center advisory.","search":"'-118106':15A,18A '-2026':14A,17A 'allow':46B,60C 'attack':10A,38B,48B,63C 'base':28B,54C 'buffer':29B,55C 'code':12A,51B,66C 'cve':13A,16A 'execut':50B,65C 'exploit':45B 'heap':4A,27B,53C 'heap-bas':26B,52C 'let':6A,35B 'microsoft':1A,19B,32B 'network':9A,43B,69C 'overflow':5A,30B,56C 'reach':39B 'run':11A 'server':3A,22B,34B,59C 'sql':2A,21B,33B,58C 'sql-server':20B 'success':44B 'unauthent':8A 'unauthor':37B,62C 'vendor':23B 'window':24B","nicknames":[],"mitigations":[],"who_affected":"Organisations running Microsoft SQL Server reachable over a network. The sources do not name affected versions or preconditions beyond network reach and no authentication.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["high","microsoft","sqlserver","vendor","windows"],"campaign_type":null,"search_a":"'-118106':15A,18A '-2026':14A,17A 'attack':10A 'code':12A 'cve':13A,16A 'heap':4A 'let':6A 'microsoft':1A 'network':9A 'overflow':5A 'run':11A 'server':3A 'sql':2A 'unauthent':8A","search_b":"'allow':46B 'attack':38B,48B 'base':28B 'buffer':29B 'code':51B 'execut':50B 'exploit':45B 'heap':27B 'heap-bas':26B 'let':35B 'microsoft':19B,32B 'network':43B 'overflow':30B 'reach':39B 'server':22B,34B 'sql':21B,33B 'sql-server':20B 'success':44B 'unauthor':37B 'vendor':23B 'window':24B","search_c":"'allow':60C 'attack':63C 'base':54C 'buffer':55C 'code':66C 'execut':65C 'heap':53C 'heap-bas':52C 'network':69C 'overflow':56C 'server':59C 'sql':58C 'unauthor':62C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:28+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-118106","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118106","severity":null,"published_at":"2026-11-10T19:19:28+00:00","modified_at":"2026-11-10T19:19:28+00:00","first_seen_at":"2026-11-10T19:24:47+00:00","fetched_at":"2026-11-10T19:24:47+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"}