{"id":"CVE-2026-105525","kind":"vulnerability","aliases":["CVE-2026-105525"],"related":[],"title":"Windows Network Connection Broker: integer overflow lets a local user gain privileges","description":"Integer overflow or wraparound in Windows Network Connection Broker allows an authorized attacker to elevate privileges locally.","summary":"An integer overflow in the Windows Network Connection Broker component lets an already-authorized user raise their privileges on the same machine. An attacker who already has a local account can gain higher rights than they were granted.","severity":"high","cvss":7.0,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","windows"],"not_affected_if":["no-local-users"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:17:51+00:00","first_seen_at":"2026-11-10T19:24:18+00:00","triaged_at":"2026-11-10T19:54:11+00:00","updated_at":"2026-11-10T19:54:11+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:54:11Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Network Connection Broker: integer overflow lets a local user gain privileges","impact":"high","summary":"An integer overflow in the Windows Network Connection Broker component lets an already-authorized user raise their privileges on the same machine. An attacker who already has a local account can gain higher rights than they were granted.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains elevated system privileges on the machine","analyst_note":"Find the affected Windows builds and the Microsoft security update that fixes CVE-2026-105525 in the MSRC entry.","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-local-users"],"who_is_affected":"Only Windows machines where a user already has a local logon can be affected; the sources do not name affected Windows builds. Remote attackers without an account are not described as able to exploit it. unknown for the exact affected versions.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000666,"input_tokens":4494,"output_tokens":433,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the affected Windows builds and the Microsoft security update that fixes CVE-2026-105525 in the MSRC entry.","search":"'-105525':15A,18A '-2026':14A,17A 'account':51B 'allow':69C 'alreadi':34B,47B 'already-author':33B 'attack':45B,72C 'author':35B,71C 'broker':4A,29B,68C 'compon':30B 'connect':3A,28B,67C 'cve':13A,16A 'elev':74C 'gain':11A,53B 'grant':59B 'higher':54B 'infrastructur':19B 'integ':5A,22B,60C 'let':7A,31B 'local':9A,50B,76C 'machin':43B 'network':2A,27B,66C 'overflow':6A,23B,61C 'privileg':12A,39B,75C 'rais':37B 'right':55B 'user':10A,36B 'window':1A,20B,26B,65C 'wraparound':63C","nicknames":[],"mitigations":[],"who_affected":"Only Windows machines where a user already has a local logon can be affected; the sources do not name affected Windows builds. Remote attackers without an account are not described as able to exploit it. unknown for the exact affected versions.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["high","infrastructure","windows"],"campaign_type":null,"search_a":"'-105525':15A,18A '-2026':14A,17A 'broker':4A 'connect':3A 'cve':13A,16A 'gain':11A 'integ':5A 'let':7A 'local':9A 'network':2A 'overflow':6A 'privileg':12A 'user':10A 'window':1A","search_b":"'account':51B 'alreadi':34B,47B 'already-author':33B 'attack':45B 'author':35B 'broker':29B 'compon':30B 'connect':28B 'gain':53B 'grant':59B 'higher':54B 'infrastructur':19B 'integ':22B 'let':31B 'local':50B 'machin':43B 'network':27B 'overflow':23B 'privileg':39B 'rais':37B 'right':55B 'user':36B 'window':20B,26B","search_c":"'allow':69C 'attack':72C 'author':71C 'broker':68C 'connect':67C 'elev':74C 'integ':60C 'local':76C 'network':66C 'overflow':61C 'privileg':75C 'window':65C 'wraparound':63C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:17:51+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/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-2026-105525","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105525","severity":null,"published_at":"2026-11-10T19:17:51+00:00","modified_at":"2026-11-10T19:17:51+00:00","first_seen_at":"2026-11-10T19:24:18+00:00","fetched_at":"2026-11-10T19:24:18+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"}