{"id":"CVE-2026-112976","kind":"vulnerability","aliases":["CVE-2026-112976"],"related":[],"title":"Windows Print Spooler: use-after-free lets a local user gain privileges","description":"Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.","summary":"A memory-handling bug in the Windows Print Spooler components lets an attacker who already has a local account raise their privileges. The sources do not describe the exact trigger.","severity":"high","cvss":7.0,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","print-spooler","windows"],"not_affected_if":["print-spooler-disabled"],"how_to_check":"- Check the Windows build with `winver` and compare it against Microsoft's security update guide for this CVE\n- Check whether the Print Spooler service is running with `Get-Service Spooler`","fix":null,"status":"open","published_at":"2026-11-10T19:18:49+00:00","first_seen_at":"2026-11-10T19:24:36+00:00","triaged_at":"2026-11-10T19:53:27+00:00","updated_at":"2026-11-10T19:53:27+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:53:27Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Print Spooler: use-after-free lets a local user gain privileges","impact":"high","summary":"A memory-handling bug in the Windows Print Spooler components lets an attacker who already has a local account raise their privileges. The sources do not describe the exact trigger.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","print-spooler"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains SYSTEM-level privileges on the machine","analyst_note":"Find Microsoft's security update guide entry for CVE-2026-112976 to get affected builds and the patch.","how_to_check":"- Check the Windows build with `winver` and compare it against Microsoft's security update guide for this CVE\n- Check whether the Print Spooler service is running with `Get-Service Spooler`","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["print-spooler-disabled"],"who_is_affected":"Windows systems with the Print Spooler components present, where a user already has a local account. Machines without Print Spooler running or with no local untrusted users are lower risk. The sources do not name affected Windows builds.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000683,"input_tokens":4484,"output_tokens":469,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find Microsoft's security update guide entry for CVE-2026-112976 to get affected builds and the patch.","search":"'-112976':16A,19A '-2026':15A,18A 'account':44B 'allow':64C 'alreadi':40B 'attack':38B,67C 'author':66C 'bug':29B 'compon':35B,63C 'cve':14A,17A 'describ':52B 'elev':69C 'exact':54B 'free':7A,58C 'gain':12A 'handl':28B 'infrastructur':20B 'let':8A,36B 'local':10A,43B,71C 'memori':27B 'memory-handl':26B 'print':2A,22B,33B,61C 'print-spool':21B 'privileg':13A,47B,70C 'rais':45B 'sourc':49B 'spooler':3A,23B,34B,62C 'trigger':55B 'use':5A,56C 'use-after-fre':4A 'user':11A 'window':1A,24B,32B,60C","nicknames":[],"mitigations":[],"who_affected":"Windows systems with the Print Spooler components present, where a user already has a local account. Machines without Print Spooler running or with no local untrusted users are lower risk. The sources do not name affected Windows builds.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["high","infrastructure","printspooler","windows"],"campaign_type":null,"search_a":"'-112976':16A,19A '-2026':15A,18A 'cve':14A,17A 'free':7A 'gain':12A 'let':8A 'local':10A 'print':2A 'privileg':13A 'spooler':3A 'use':5A 'use-after-fre':4A 'user':11A 'window':1A","search_b":"'account':44B 'alreadi':40B 'attack':38B 'bug':29B 'compon':35B 'describ':52B 'exact':54B 'handl':28B 'infrastructur':20B 'let':36B 'local':43B 'memori':27B 'memory-handl':26B 'print':22B,33B 'print-spool':21B 'privileg':47B 'rais':45B 'sourc':49B 'spooler':23B,34B 'trigger':55B 'window':24B,32B","search_c":"'allow':64C 'attack':67C 'author':66C 'compon':63C 'elev':69C 'free':58C 'local':71C 'print':61C 'privileg':70C 'spooler':62C 'use':56C 'window':60C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:49+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-2026-112976","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112976","severity":null,"published_at":"2026-11-10T19:18:49+00:00","modified_at":"2026-11-10T19:18:49+00:00","first_seen_at":"2026-11-10T19:24:36+00:00","fetched_at":"2026-11-10T19:24:36+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"}