{"id":"CVE-2026-118280","kind":"vulnerability","aliases":["CVE-2026-118280"],"related":[],"title":"Windows: heap overflow in graphics platform lets local users gain 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, the Windows graphics component, can be triggered by an authorized local user. An attacker who already has a local account can use it to elevate privileges on the machine.","severity":"high","cvss":7.8,"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":"2026-11-10T19:19:41+00:00","first_seen_at":"2026-11-10T19:24:51+00:00","triaged_at":"2026-11-10T19:40:37+00:00","updated_at":"2026-11-10T19:40:37+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:40:37Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows: heap overflow in graphics platform lets local users gain privileges","impact":"high","summary":"A heap-based buffer overflow in the Windows Advanced Rasterization Platform, the Windows graphics component, can be triggered by an authorized local user. An attacker who already has a local account can use it to elevate privileges on the machine.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains elevated privileges, such as SYSTEM, on the machine","analyst_note":"Find the affected Windows builds and the Microsoft security update that fixes CVE-2026-118280 at the MSRC entry; the NVD record gives no ranges.","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-local-users"],"who_is_affected":"Any Windows machine where a user already has a local account is in scope, since the attacker must be authorized on the system first. The sources do not name affected Windows builds or a patch, so unknown. Servers and workstations shared by multiple users are the most relevant.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.00068,"input_tokens":4502,"output_tokens":459,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the affected Windows builds and the Microsoft security update that fixes CVE-2026-118280 at the MSRC entry; the NVD record gives no ranges.","search":"'-118280':14A,17A '-2026':13A,16A 'account':51B 'advanc':29B,68C 'allow':71C 'alreadi':47B 'attack':45B,74C 'author':41B,73C 'base':23B,63C 'buffer':24B,64C 'compon':35B 'cve':12A,15A 'elev':56B,76C 'gain':10A 'graphic':5A,34B 'heap':2A,22B,62C 'heap-bas':21B,61C 'infrastructur':18B 'let':7A 'local':8A,42B,50B,78C 'machin':60B 'overflow':3A,25B,65C 'platform':6A,31B,70C 'privileg':11A,57B,77C 'raster':30B,69C 'trigger':38B 'use':53B 'user':9A,43B 'window':1A,19B,28B,33B,67C","nicknames":[],"mitigations":[],"who_affected":"Any Windows machine where a user already has a local account is in scope, since the attacker must be authorized on the system first. The sources do not name affected Windows builds or a patch, so unknown. Servers and workstations shared by multiple users are the most relevant.","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":"'-118280':14A,17A '-2026':13A,16A 'cve':12A,15A 'gain':10A 'graphic':5A 'heap':2A 'let':7A 'local':8A 'overflow':3A 'platform':6A 'privileg':11A 'user':9A 'window':1A","search_b":"'account':51B 'advanc':29B 'alreadi':47B 'attack':45B 'author':41B 'base':23B 'buffer':24B 'compon':35B 'elev':56B 'graphic':34B 'heap':22B 'heap-bas':21B 'infrastructur':18B 'local':42B,50B 'machin':60B 'overflow':25B 'platform':31B 'privileg':57B 'raster':30B 'trigger':38B 'use':53B 'user':43B 'window':19B,28B,33B","search_c":"'advanc':68C 'allow':71C 'attack':74C 'author':73C 'base':63C 'buffer':64C 'elev':76C 'heap':62C 'heap-bas':61C 'local':78C 'overflow':65C 'platform':70C 'privileg':77C 'raster':69C 'window':67C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:41+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:H/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-2026-118280","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118280","severity":null,"published_at":"2026-11-10T19:19:41+00:00","modified_at":"2026-11-10T19:19:42+00:00","first_seen_at":"2026-11-10T19:24:51+00:00","fetched_at":"2026-11-10T19:24:51+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"}