{"id":"CVE-2026-113755","kind":"vulnerability","aliases":["CVE-2026-113755"],"related":[],"title":"Windows Filter Manager: use-after-free lets a local user gain higher privileges","description":"Use after free in Windows Filter Manager allows an authorized attacker to elevate privileges locally.","summary":"A use-after-free bug in the Windows Filter Manager driver lets a user who already has local access corrupt memory and raise their privileges. The sources give no further detail on the exploit path.","severity":"high","cvss":7.0,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Windows Filter Manager","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["filter-manager","infrastructure","windows"],"not_affected_if":["no-local-untrusted-users"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:18:53+00:00","first_seen_at":"2026-11-10T19:24:38+00:00","triaged_at":"2026-11-10T19:52:17+00:00","updated_at":"2026-11-10T19:52:17+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:52:17Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"local","title":"Windows Filter Manager: use-after-free lets a local user gain higher privileges","impact":"high","summary":"A use-after-free bug in the Windows Filter Manager driver lets a user who already has local access corrupt memory and raise their privileges. The sources give no further detail on the exploit path.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","filter-manager"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains SYSTEM-level privileges on the machine","analyst_note":"Find the Microsoft security update guide entry for CVE-2026-113755 to get affected Windows builds and the patch.","how_to_check":"- unknown","plain_action":"","product_name":"Windows Filter Manager","needs_analyst":true,"not_affected_if":["no-local-untrusted-users"],"who_is_affected":"Windows machines with a Filter Manager driver that has not received the vendor update; an attacker must already be able to run code or log in locally. The sources do not say which Windows builds are affected or which ones are patched.","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000674,"input_tokens":4480,"output_tokens":452,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the Microsoft security update guide entry for CVE-2026-113755 to get affected Windows builds and the patch.","search":"'-113755':17A,20A '-2026':16A,19A 'access':48B 'allow':72C 'alreadi':45B 'attack':75C 'author':74C 'bug':34B 'corrupt':49B 'cve':15A,18A 'detail':60B 'driver':40B 'elev':77C 'exploit':63B 'filter':2A,22A,25B,38B,70C 'filter-manag':24B 'free':7A,33B,67C 'gain':12A 'give':57B 'higher':13A 'infrastructur':27B 'let':8A,41B 'local':10A,47B,79C 'manag':3A,26B,39B,71C 'manager':23A 'memori':50B 'path':64B 'privileg':14A,54B,78C 'rais':52B 'sourc':56B 'use':5A,31B,65C 'use-after-fre':4A,30B 'user':11A,43B 'window':1A,28B,37B,69C 'windows':21A","nicknames":[],"mitigations":[],"who_affected":"Windows machines with a Filter Manager driver that has not received the vendor update; an attacker must already be able to run code or log in locally. The sources do not say which Windows builds are affected or which ones are patched.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["filtermanager","windowsfiltermanager"],"ptokens":["filter","manager","windows"],"labels":["filtermanager","high","infrastructure","vendor","windows"],"campaign_type":null,"search_a":"'-113755':17A,20A '-2026':16A,19A 'cve':15A,18A 'filter':2A,22A 'free':7A 'gain':12A 'higher':13A 'let':8A 'local':10A 'manag':3A 'manager':23A 'privileg':14A 'use':5A 'use-after-fre':4A 'user':11A 'window':1A 'windows':21A","search_b":"'access':48B 'alreadi':45B 'bug':34B 'corrupt':49B 'detail':60B 'driver':40B 'exploit':63B 'filter':25B,38B 'filter-manag':24B 'free':33B 'give':57B 'infrastructur':27B 'let':41B 'local':47B 'manag':26B,39B 'memori':50B 'path':64B 'privileg':54B 'rais':52B 'sourc':56B 'use':31B 'use-after-fre':30B 'user':43B 'window':28B,37B","search_c":"'allow':72C 'attack':75C 'author':74C 'elev':77C 'filter':70C 'free':67C 'local':79C 'manag':71C 'privileg':78C 'use':65C 'window':69C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:53+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-2026-113755","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113755","severity":null,"published_at":"2026-11-10T19:18:53+00:00","modified_at":"2026-11-10T19:18:53+00:00","first_seen_at":"2026-11-10T19:24:38+00:00","fetched_at":"2026-11-10T19:24:38+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"}