{"id":"CVE-2026-108413","kind":"vulnerability","aliases":["CVE-2026-108413"],"related":[],"title":"Windows Telephony Service: use-after-free lets a local user gain privileges","description":"Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.","summary":"A memory-handling bug in the Windows Telephony Service lets an attacker who already has a local account raise their privileges. The sources give no fixed build or affected version range.","severity":"high","cvss":7.0,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Windows Telephony Service","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["infrastructure","windows"],"not_affected_if":[],"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":"2026-11-10T19:53:51+00:00","updated_at":"2026-11-10T19:53:51+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-10T19:53:51Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Telephony Service: use-after-free lets a local user gain privileges","impact":"high","summary":"A memory-handling bug in the Windows Telephony Service lets an attacker who already has a local account raise their privileges. The sources give no fixed build or affected version range.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains elevated system privileges on the machine","analyst_note":"Find the affected Windows builds and the Microsoft security update for CVE-2026-108413 at the NVD page https://nvd.nist.gov/vuln/detail/CVE-2026-108413 and the Microsoft Security Response Center.","how_to_check":"- unknown","plain_action":"","product_name":"Windows Telephony Service","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Windows machines running the Telephony Service with a local authorized user account. The sources do not list affected Windows builds, and they do not say whether the service is on by default.","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000672,"input_tokens":4480,"output_tokens":447,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the affected Windows builds and the Microsoft security update for CVE-2026-108413 at the NVD page https://nvd.nist.gov/vuln/detail/CVE-2026-108413 and the Microsoft Security Response Center.","search":"'-108413':16A,19A '-2026':15A,18A 'account':43B 'affect':54B 'allow':64C 'alreadi':39B 'attack':37B,67C 'author':66C 'bug':29B 'build':52B 'cve':14A,17A 'elev':69C 'fix':51B 'free':7A,59C 'gain':12A 'give':49B 'handl':28B 'infrastructur':23B 'let':8A,35B 'local':10A,42B,71C 'memori':27B 'memory-handl':26B 'privileg':13A,46B,70C 'rais':44B 'rang':56B 'servic':3A,34B,63C 'service':22A 'sourc':48B 'telephoni':2A,33B,62C 'telephony':21A 'use':5A,57C 'use-after-fre':4A 'user':11A 'version':55B 'window':1A,24B,32B,61C 'windows':20A","nicknames":[],"mitigations":[],"who_affected":"Windows machines running the Telephony Service with a local authorized user account. The sources do not list affected Windows builds, and they do not say whether the service is on by default.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["telephonyservice","windowstelephonyservice"],"ptokens":["service","telephony","windows"],"labels":["high","infrastructure","vendor","windows"],"campaign_type":null,"search_a":"'-108413':16A,19A '-2026':15A,18A 'cve':14A,17A 'free':7A 'gain':12A 'let':8A 'local':10A 'privileg':13A 'servic':3A 'service':22A 'telephoni':2A 'telephony':21A 'use':5A 'use-after-fre':4A 'user':11A 'window':1A 'windows':20A","search_b":"'account':43B 'affect':54B 'alreadi':39B 'attack':37B 'bug':29B 'build':52B 'fix':51B 'give':49B 'handl':28B 'infrastructur':23B 'let':35B 'local':42B 'memori':27B 'memory-handl':26B 'privileg':46B 'rais':44B 'rang':56B 'servic':34B 'sourc':48B 'telephoni':33B 'version':55B 'window':24B,32B","search_c":"'allow':64C 'attack':67C 'author':66C 'elev':69C 'free':59C 'local':71C 'privileg':70C 'servic':63C 'telephoni':62C 'use':57C 'window':61C","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: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-2026-108413","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108413","severity":null,"published_at":"2026-11-10T19:18:11+00:00","modified_at":"2026-11-10T19:18:12+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"}