{"id":"CVE-2026-66813","kind":"vulnerability","aliases":["CVE-2026-66813"],"related":[],"title":"Microsoft SQL Server: out-of-bounds read lets a network attacker gain privileges","description":"Out-of-bounds read in SQL Server allows an unauthorized attacker to elevate privileges over a network.","summary":"An out-of-bounds memory read in Microsoft SQL Server lets an unauthorized attacker on the network raise their privileges. The sources do not describe the exact trigger or the affected versions.","severity":"high","cvss":8.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","microsoft","sql-server"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:21:17+00:00","first_seen_at":"2026-11-10T19:25:16+00:00","triaged_at":"2026-11-10T19:34:36+00:00","updated_at":"2026-11-10T19:34:36+00:00","category":"infrastructure","confidence":0.4,"triage":{"at":"2026-11-10T19:34:36Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Microsoft SQL Server: out-of-bounds read lets a network attacker gain privileges","impact":"high","summary":"An out-of-bounds memory read in Microsoft SQL Server lets an unauthorized attacker on the network raise their privileges. The sources do not describe the exact trigger or the affected versions.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["sql-server","microsoft"],"confidence":0.4,"fix_status":"unknown","needs_auth":"unknown","worst_case":"Attacker gains elevated privileges on the database server over the network","analyst_note":"Find the affected SQL Server versions, the fixed builds and the Microsoft advisory for CVE-2026-66813 in the NVD entry or the MSRC page.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000638,"input_tokens":4488,"output_tokens":378,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the affected SQL Server versions, the fixed builds and the Microsoft advisory for CVE-2026-66813 in the NVD entry or the MSRC page.","search":"'-2026':16A,19A '-66813':17A,20A 'affect':57B 'allow':67C 'attack':12A,40B,70C 'bound':7A,30B,62C 'cve':15A,18A 'describ':51B 'elev':72C 'exact':53B 'gain':13A 'infrastructur':21B 'let':9A,37B 'memori':31B 'microsoft':1A,22B,34B 'network':11A,43B,76C 'out-of-bound':4A,27B,59C 'privileg':14A,46B,73C 'rais':44B 'read':8A,32B,63C 'server':3A,25B,36B,66C 'sourc':48B 'sql':2A,24B,35B,65C 'sql-server':23B 'trigger':54B 'unauthor':39B,69C 'version':58B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["high","infrastructure","microsoft","sqlserver"],"campaign_type":null,"search_a":"'-2026':16A,19A '-66813':17A,20A 'attack':12A 'bound':7A 'cve':15A,18A 'gain':13A 'let':9A 'microsoft':1A 'network':11A 'out-of-bound':4A 'privileg':14A 'read':8A 'server':3A 'sql':2A","search_b":"'affect':57B 'attack':40B 'bound':30B 'describ':51B 'exact':53B 'infrastructur':21B 'let':37B 'memori':31B 'microsoft':22B,34B 'network':43B 'out-of-bound':27B 'privileg':46B 'rais':44B 'read':32B 'server':25B,36B 'sourc':48B 'sql':24B,35B 'sql-server':23B 'trigger':54B 'unauthor':39B 'version':58B","search_c":"'allow':67C 'attack':70C 'bound':62C 'elev':72C 'network':76C 'out-of-bound':59C 'privileg':73C 'read':63C 'server':66C 'sql':65C 'unauthor':69C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:21:17+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-2026-66813","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66813","severity":null,"published_at":"2026-11-10T19:21:17+00:00","modified_at":"2026-11-10T19:21:17+00:00","first_seen_at":"2026-11-10T19:25:16+00:00","fetched_at":"2026-11-10T19:25:16+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"}