{"id":"CVE-2026-118217","kind":"vulnerability","aliases":["CVE-2026-118217"],"related":[],"title":"Windows: use-after-free in rasterization platform lets a local user gain privileges","description":"Use after free in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.","summary":"A use-after-free flaw in the Windows Advanced Rasterization Platform lets a user who already has an account on the machine raise their privileges. The sources do not say which Windows versions are affected or how the flaw is triggered.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","local-privilege-escalation","warp","windows"],"not_affected_if":[],"how_to_check":"Unknown until the MSRC entry is readable. Check the MSRC Update Guide for CVE-2026-118217 and compare your installed November 2026 cumulative update (winver / Get-HotFix). A third-party aggregator lists Windows 10 1809 among affected, which is unconfirmed.","fix":null,"status":"open","published_at":"2026-11-10T19:19:38+00:00","first_seen_at":"2026-11-10T19:24:50+00:00","triaged_at":"2026-11-10T19:30:10+00:00","updated_at":"2026-11-10T23:20:04+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:30:10Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"local","title":"Windows: use-after-free in rasterization platform lets a local user gain privileges","impact":"high","summary":"A use-after-free flaw in the Windows Advanced Rasterization Platform lets a user who already has an account on the machine raise their privileges. The sources do not say which Windows versions are affected or how the flaw is triggered.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"Local user gains administrator or SYSTEM privileges on the machine","analyst_note":"Find the Microsoft security update guide entry for CVE-2026-118217 to get affected Windows builds and the patched version.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Any Windows machine where a person already has a local account could be affected, since the attacker must be authorized on the system first. The sources do not name affected builds. unknown","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000653,"input_tokens":4492,"output_tokens":407,"severity_before":"high"},"analyst_status":"done","analyst_note":"Find the Microsoft security update guide entry for CVE-2026-118217 to get affected Windows builds and the patched version.","search":"'-118217':17A,20A '-2026':16A,19A 'account':47B 'advanc':37B,75C 'affect':63B 'allow':78C 'alreadi':44B 'attack':81C 'author':80C 'cve':15A,18A 'elev':83C 'escal':25B 'flaw':33B,67B 'free':5A,32B,72C 'gain':13A 'infrastructur':21B 'let':9A,40B 'local':11A,23B,85C 'local-privilege-escal':22B 'machin':50B 'platform':8A,39B,77C 'privileg':14A,24B,53B,84C 'rais':51B 'raster':7A,38B,76C 'say':58B 'sourc':55B 'trigger':69B 'use':3A,30B,70C 'use-after-fre':2A,29B 'user':12A,42B 'version':61B 'warp':26B 'window':1A,27B,36B,60B,74C","nicknames":[],"mitigations":[],"who_affected":"Any Windows machine where a person already has a local account could be affected, since the attacker must be authorized on the system first. The sources do not name affected builds. unknown","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["high","infrastructure","localprivilegeescalation","warp","windows"],"campaign_type":null,"search_a":"'-118217':17A,20A '-2026':16A,19A 'cve':15A,18A 'free':5A 'gain':13A 'let':9A 'local':11A 'platform':8A 'privileg':14A 'raster':7A 'use':3A 'use-after-fre':2A 'user':12A 'window':1A","search_b":"'account':47B 'advanc':37B 'affect':63B 'alreadi':44B 'escal':25B 'flaw':33B,67B 'free':32B 'infrastructur':21B 'let':40B 'local':23B 'local-privilege-escal':22B 'machin':50B 'platform':39B 'privileg':24B,53B 'rais':51B 'raster':38B 'say':58B 'sourc':55B 'trigger':69B 'use':30B 'use-after-fre':29B 'user':42B 'version':61B 'warp':26B 'window':27B,36B,60B","search_c":"'advanc':75C 'allow':78C 'attack':81C 'author':80C 'elev':83C 'free':72C 'local':85C 'platform':77C 'privileg':84C 'raster':76C 'use':70C 'window':74C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:38+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-2026-118217","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118217","severity":null,"published_at":"2026-11-10T19:19:38+00:00","modified_at":"2026-11-10T19:19:38+00:00","first_seen_at":"2026-11-10T19:24:50+00:00","fetched_at":"2026-11-10T19:24:50+00:00","note":null},{"source":"analyst","external_id":"CVE-2026-118217:3148","url":null,"severity":null,"published_at":"2026-11-10T23:20:04+00:00","modified_at":"2026-11-10T23:20:04+00:00","first_seen_at":"2026-11-10T23:20:04+00:00","fetched_at":"2026-11-10T23:20:04+00:00","note":"MSRC and NVD pages returned no content via web-cli; only rewrites (Rapid7, VulnFeed) found. Builds and patch KB unknown, nothing verified. Needs the MSRC update guide entry (Nov 2026 Patch Tuesday). Sibling CVE-2026-118218 has the same title."}],"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"}