{"id":"CVE-2026-114155","kind":"vulnerability","aliases":["CVE-2026-114155"],"related":[],"title":".NET: race condition lets a local user with access gain higher privileges","description":"Time-of-check time-of-use (toctou) race condition in .NET allows an authorized attacker to elevate privileges locally.","summary":"A time-of-check time-of-use race condition in .NET lets an attacker who already has authorized local access elevate their privileges. The sources do not name the affected .NET versions or a fixed release.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":".NET","fixed":[],"affected":"","ecosystem":"runtime"}],"ecosystems":["runtime"],"tags":["dotnet","runtime","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:19:08+00:00","first_seen_at":"2026-11-10T19:24:43+00:00","triaged_at":"2026-11-10T19:44:58+00:00","updated_at":"2026-11-10T19:44:58+00:00","category":"runtime","confidence":0.5,"triage":{"at":"2026-11-10T19:44:58Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":".NET: race condition lets a local user with access gain higher privileges","impact":"high","summary":"A time-of-check time-of-use race condition in .NET lets an attacker who already has authorized local access elevate their privileges. The sources do not name the affected .NET versions or a fixed release.","audience":"businesses","category":"runtime","nicknames":[],"who_cares":["dotnet","windows"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains elevated privileges on the machine","analyst_note":"Find the affected .NET versions and fixed releases from the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-114155 or the Microsoft advisory it cites.","how_to_check":"- unknown","plain_action":"","product_name":".NET","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"no","product_ecosystem":"runtime","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000643,"input_tokens":4498,"output_tokens":386,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the affected .NET versions and fixed releases from the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-114155 or the Microsoft advisory it cites.","search":"'-114155':15A,18A '-2026':14A,17A 'access':9A,44B 'affect':54B 'allow':74C 'alreadi':40B 'attack':38B,77C 'author':42B,76C 'check':27B,64C 'condit':3A,33B,71C 'cve':13A,16A 'dotnet':20B 'elev':45B,79C 'fix':59B 'gain':10A 'higher':11A 'let':4A,36B 'local':6A,43B,81C 'name':52B 'net':1A,19A,35B,55B,73C 'privileg':12A,47B,80C 'race':2A,32B,70C 'releas':60B 'runtim':21B 'sourc':49B 'time':25B,29B,62C,66C 'time-of-check':24B,61C 'time-of-us':28B,65C 'toctou':69C 'use':31B,68C 'user':7A 'version':56B 'window':22B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["net"],"ptokens":["net"],"labels":["dotnet","high","runtime","windows"],"campaign_type":null,"search_a":"'-114155':15A,18A '-2026':14A,17A 'access':9A 'condit':3A 'cve':13A,16A 'gain':10A 'higher':11A 'let':4A 'local':6A 'net':1A,19A 'privileg':12A 'race':2A 'user':7A","search_b":"'access':44B 'affect':54B 'alreadi':40B 'attack':38B 'author':42B 'check':27B 'condit':33B 'dotnet':20B 'elev':45B 'fix':59B 'let':36B 'local':43B 'name':52B 'net':35B,55B 'privileg':47B 'race':32B 'releas':60B 'runtim':21B 'sourc':49B 'time':25B,29B 'time-of-check':24B 'time-of-us':28B 'use':31B 'version':56B 'window':22B","search_c":"'allow':74C 'attack':77C 'author':76C 'check':64C 'condit':71C 'elev':79C 'local':81C 'net':73C 'privileg':80C 'race':70C 'time':62C,66C 'time-of-check':61C 'time-of-us':65C 'toctou':69C 'use':68C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:08+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-114155","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114155","severity":null,"published_at":"2026-11-10T19:19:08+00:00","modified_at":"2026-11-10T19:19:08+00:00","first_seen_at":"2026-11-10T19:24:43+00:00","fetched_at":"2026-11-10T19:24:43+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"}