{"id":"CVE-2026-108412","kind":"vulnerability","aliases":["CVE-2026-108412"],"related":[],"title":"Windows: heap overflow in Redirected Drive Buffering lets local users gain privileges","description":"Heap-based buffer overflow in Windows Redirected Drive Buffering allows an authorized attacker to elevate privileges locally.","summary":"A heap-based buffer overflow in the Windows Redirected Drive Buffering component lets an authorized local user elevate their privileges. The sources do not name the affected Windows builds or a fixed update.","severity":"high","cvss":7.8,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Windows Redirected Drive Buffering","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["infrastructure","windows"],"not_affected_if":["unknown"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:18:11+00:00","first_seen_at":"2026-11-10T19:24:22+00:00","triaged_at":"2026-11-10T19:42:26+00:00","updated_at":"2026-11-10T19:42:26+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:42:26Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"local","title":"Windows: heap overflow in Redirected Drive Buffering lets local users gain privileges","impact":"high","summary":"A heap-based buffer overflow in the Windows Redirected Drive Buffering component lets an authorized local user elevate their privileges. The sources do not name the affected Windows builds or a fixed update.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"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 advisory for CVE-2026-108412 to confirm affected Windows builds, a patch, and any check (NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-108412).","how_to_check":"- unknown","plain_action":"","product_name":"Windows Redirected Drive Buffering","needs_analyst":true,"not_affected_if":["unknown"],"who_is_affected":"Windows machines that use Redirected Drive Buffering, the component that handles mapped or redirected drives, are the relevant systems. An attacker must already hold a local account on the machine. The sources do not say which Windows versions or configurations are affected.","user_interaction":"no","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000701,"input_tokens":4503,"output_tokens":501,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find Microsoft's advisory for CVE-2026-108412 to confirm affected Windows builds, a patch, and any check (NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-108412).","search":"'-108412':15A,18A '-2026':14A,17A 'affect':52B 'allow':69C 'attack':72C 'author':40B,71C 'base':28B,61C 'buffer':7A,29B,36B,62C,68C 'buffering':22A 'build':54B 'compon':37B 'cve':13A,16A 'drive':6A,21A,35B,67C 'elev':43B,74C 'fix':57B 'gain':11A 'heap':2A,27B,60C 'heap-bas':26B,59C 'infrastructur':23B 'let':8A,38B 'local':9A,41B,76C 'name':50B 'overflow':3A,30B,63C 'privileg':12A,45B,75C 'redirect':5A,34B,66C 'redirected':20A 'sourc':47B 'updat':58B 'user':10A,42B 'window':1A,24B,33B,53B,65C 'windows':19A","nicknames":[],"mitigations":[],"who_affected":"Windows machines that use Redirected Drive Buffering, the component that handles mapped or redirected drives, are the relevant systems. An attacker must already hold a local account on the machine. The sources do not say which Windows versions or configurations are affected.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["redirecteddrivebuffering","windowsredirecteddrivebuffering"],"ptokens":["buffering","drive","redirected","windows"],"labels":["high","infrastructure","vendor","windows"],"campaign_type":null,"search_a":"'-108412':15A,18A '-2026':14A,17A 'buffer':7A 'buffering':22A 'cve':13A,16A 'drive':6A,21A 'gain':11A 'heap':2A 'let':8A 'local':9A 'overflow':3A 'privileg':12A 'redirect':5A 'redirected':20A 'user':10A 'window':1A 'windows':19A","search_b":"'affect':52B 'author':40B 'base':28B 'buffer':29B,36B 'build':54B 'compon':37B 'drive':35B 'elev':43B 'fix':57B 'heap':27B 'heap-bas':26B 'infrastructur':23B 'let':38B 'local':41B 'name':50B 'overflow':30B 'privileg':45B 'redirect':34B 'sourc':47B 'updat':58B 'user':42B 'window':24B,33B,53B","search_c":"'allow':69C 'attack':72C 'author':71C 'base':61C 'buffer':62C,68C 'drive':67C 'elev':74C 'heap':60C 'heap-bas':59C 'local':76C 'overflow':63C 'privileg':75C 'redirect':66C 'window':65C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:11+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/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-2026-108412","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108412","severity":null,"published_at":"2026-11-10T19:18:11+00:00","modified_at":"2026-11-10T19:18:11+00:00","first_seen_at":"2026-11-10T19:24:22+00:00","fetched_at":"2026-11-10T19:24:22+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"}