{"id":"CVE-2026-112791","kind":"vulnerability","aliases":["CVE-2026-112791"],"related":[],"title":"Windows Print Spooler: race condition lets a local user gain higher privileges","description":"Time-of-check time-of-use (toctou) race condition in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.","summary":"A race condition (time-of-check time-of-use) in the Windows Print Spooler components lets an attacker who already has a local account 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 Print Spooler","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["infrastructure","print-spooler","windows"],"not_affected_if":["no-local-users","spooler-disabled"],"how_to_check":"- Check the installed Windows build with `winver` and compare it against the Microsoft security update for this CVE.\n- Check whether the Print Spooler service is running with `Get-Service Spooler` in PowerShell.","fix":null,"status":"open","published_at":"2026-11-10T19:18:40+00:00","first_seen_at":"2026-11-10T19:24:33+00:00","triaged_at":"2026-11-10T19:53:42+00:00","updated_at":"2026-11-10T19:53:42+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:53:42Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Print Spooler: race condition lets a local user gain higher privileges","impact":"high","summary":"A race condition (time-of-check time-of-use) in the Windows Print Spooler components lets an attacker who already has a local account raise their privileges. The sources give no further detail on the exploit path.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","print-spooler"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains elevated privileges on the Windows machine","analyst_note":"Confirm the affected Windows builds and the Microsoft fixed-update KB from the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-112791.","how_to_check":"- Check the installed Windows build with `winver` and compare it against the Microsoft security update for this CVE.\n- Check whether the Print Spooler service is running with `Get-Service Spooler` in PowerShell.","plain_action":"","product_name":"Windows Print Spooler","needs_analyst":true,"not_affected_if":["spooler-disabled","no-local-users"],"who_is_affected":"Windows machines with the Print Spooler service present and running. The attacker needs a local logon first, so exposure is mainly a concern on shared or multi-user systems. unknown beyond that.","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.00072,"input_tokens":4506,"output_tokens":538,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Confirm the affected Windows builds and the Microsoft fixed-update KB from the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-112791.","search":"'-112791':15A,18A '-2026':14A,17A 'account':52B 'allow':82C 'alreadi':48B 'attack':46B,85C 'author':84C 'check':33B,69C 'compon':43B,81C 'condit':5A,29B,76C 'cve':13A,16A 'detail':61B 'elev':87C 'exploit':64B 'gain':10A 'give':58B 'higher':11A 'infrastructur':22B 'let':6A,44B 'local':8A,51B,89C 'path':65B 'print':2A,20A,24B,41B,79C 'print-spool':23B 'privileg':12A,55B,88C 'race':4A,28B,75C 'rais':53B 'sourc':57B 'spooler':3A,21A,25B,42B,80C 'time':31B,35B,67C,71C 'time-of-check':30B,66C 'time-of-us':34B,70C 'toctou':74C 'use':37B,73C 'user':9A 'window':1A,26B,40B,78C 'windows':19A","nicknames":[],"mitigations":[],"who_affected":"Windows machines with the Print Spooler service present and running. The attacker needs a local logon first, so exposure is mainly a concern on shared or multi-user systems. unknown beyond that.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["printspooler","windowsprintspooler"],"ptokens":["print","spooler","windows"],"labels":["high","infrastructure","printspooler","vendor","windows"],"campaign_type":null,"search_a":"'-112791':15A,18A '-2026':14A,17A 'condit':5A 'cve':13A,16A 'gain':10A 'higher':11A 'let':6A 'local':8A 'print':2A,20A 'privileg':12A 'race':4A 'spooler':3A,21A 'user':9A 'window':1A 'windows':19A","search_b":"'account':52B 'alreadi':48B 'attack':46B 'check':33B 'compon':43B 'condit':29B 'detail':61B 'exploit':64B 'give':58B 'infrastructur':22B 'let':44B 'local':51B 'path':65B 'print':24B,41B 'print-spool':23B 'privileg':55B 'race':28B 'rais':53B 'sourc':57B 'spooler':25B,42B 'time':31B,35B 'time-of-check':30B 'time-of-us':34B 'use':37B 'window':26B,40B","search_c":"'allow':82C 'attack':85C 'author':84C 'check':69C 'compon':81C 'condit':76C 'elev':87C 'local':89C 'print':79C 'privileg':88C 'race':75C 'spooler':80C 'time':67C,71C 'time-of-check':66C 'time-of-us':70C 'toctou':74C 'use':73C 'window':78C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:40+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-2026-112791","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112791","severity":null,"published_at":"2026-11-10T19:18:40+00:00","modified_at":"2026-11-10T19:18:40+00:00","first_seen_at":"2026-11-10T19:24:33+00:00","fetched_at":"2026-11-10T19:24:33+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"}