{"id":"CVE-2026-105498","kind":"vulnerability","aliases":["CVE-2026-105498"],"related":[],"title":"Windows: heap buffer overflow lets a local user gain higher privileges","description":"Heap-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.","summary":"A heap-based buffer overflow in the Windows Advanced Rasterization Platform lets an attacker who already has a local, authorized account raise their privileges. The sources do not name affected Windows builds or a patched release.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","windows"],"not_affected_if":["no-local-logon"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:17:47+00:00","first_seen_at":"2026-11-10T19:24:14+00:00","triaged_at":"2026-11-10T19:34:08+00:00","updated_at":"2026-11-10T19:34:08+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-10T19:34:08Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows: heap buffer overflow lets a local user gain higher privileges","impact":"high","summary":"A heap-based buffer overflow in the Windows Advanced Rasterization Platform lets an attacker who already has a local, authorized account raise their privileges. The sources do not name affected Windows builds or a patched release.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"local attacker gains elevated system privileges on the machine","analyst_note":"Check the Microsoft Security Update Guide entry for affected Windows builds, the patch, and whether this is exploited; NVD lists only the description.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-local-logon"],"who_is_affected":"Machines running affected Windows builds where an attacker already has a local logon. The sources do not list affected builds, so the exact scope is unknown. Systems where no untrusted users can sign in locally are at lower risk.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000666,"input_tokens":4502,"output_tokens":431,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check the Microsoft Security Update Guide entry for affected Windows builds, the patch, and whether this is exploited; NVD lists only the description.","search":"'-105498':14A,17A '-2026':13A,16A 'account':41B 'advanc':29B,64C 'affect':50B 'allow':67C 'alreadi':36B 'attack':34B,70C 'author':40B,69C 'base':23B,59C 'buffer':3A,24B,60C 'build':52B 'cve':12A,15A 'elev':72C 'gain':9A 'heap':2A,22B,58C 'heap-bas':21B,57C 'higher':10A 'infrastructur':18B 'let':5A,32B 'local':7A,39B,74C 'name':49B 'overflow':4A,25B,61C 'patch':55B 'platform':31B,66C 'privileg':11A,44B,73C 'rais':42B 'raster':30B,65C 'releas':56B 'sourc':46B 'user':8A 'window':1A,19B,28B,51B,63C","nicknames":[],"mitigations":[],"who_affected":"Machines running affected Windows builds where an attacker already has a local logon. The sources do not list affected builds, so the exact scope is unknown. Systems where no untrusted users can sign in locally are at lower risk.","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":"'-105498':14A,17A '-2026':13A,16A 'buffer':3A 'cve':12A,15A 'gain':9A 'heap':2A 'higher':10A 'let':5A 'local':7A 'overflow':4A 'privileg':11A 'user':8A 'window':1A","search_b":"'account':41B 'advanc':29B 'affect':50B 'alreadi':36B 'attack':34B 'author':40B 'base':23B 'buffer':24B 'build':52B 'heap':22B 'heap-bas':21B 'infrastructur':18B 'let':32B 'local':39B 'name':49B 'overflow':25B 'patch':55B 'platform':31B 'privileg':44B 'rais':42B 'raster':30B 'releas':56B 'sourc':46B 'window':19B,28B,51B","search_c":"'advanc':64C 'allow':67C 'attack':70C 'author':69C 'base':59C 'buffer':60C 'elev':72C 'heap':58C 'heap-bas':57C 'local':74C 'overflow':61C 'platform':66C 'privileg':73C 'raster':65C 'window':63C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:17:47+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-105498","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105498","severity":null,"published_at":"2026-11-10T19:17:47+00:00","modified_at":"2026-11-10T19:17:47+00:00","first_seen_at":"2026-11-10T19:24:14+00:00","fetched_at":"2026-11-10T19:24:14+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"}