{"id":"CVE-2026-96150","kind":"vulnerability","aliases":["CVE-2026-96150"],"related":[],"title":"Windows Codecs Library: uninitialized memory lets a local user read data","description":"Use of uninitialized resource in Microsoft Windows Codecs Library allows an authorized attacker to disclose information locally.","summary":"Microsoft's Windows Codecs Library reads a resource that was never initialized, which can leak memory contents. An authorized attacker with a local account can read information they should not see.","severity":"medium","cvss":5.6,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["codecs","infrastructure","windows"],"not_affected_if":["no-local-accounts"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:22:12+00:00","first_seen_at":"2026-11-10T19:25:31+00:00","triaged_at":"2026-11-10T20:00:13+00:00","updated_at":"2026-11-10T20:00:13+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T20:00:13Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Codecs Library: uninitialized memory lets a local user read data","impact":"low","summary":"Microsoft's Windows Codecs Library reads a resource that was never initialized, which can leak memory contents. An authorized attacker with a local account can read information they should not see.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","codecs"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user reads leaked memory contents from the system","analyst_note":"Check the Microsoft Security Update Guide entry for CVE-2026-96150 for affected Windows builds and the patch KB; sources only cite NVD.","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-local-accounts"],"who_is_affected":"Windows machines with the Windows Codecs Library installed are the systems in scope. Exploitation needs an existing local account, so shared or multi-user Windows hosts matter most. unknown for which exact Windows builds are affected.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000662,"input_tokens":4497,"output_tokens":425,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-96150':14A,17A 'account':44B 'allow':61C 'attack':40B,64C 'author':39B,63C 'codec':2A,18B,24B,59C 'content':37B 'cve':12A,15A 'data':11A 'disclos':66C 'inform':47B,67C 'infrastructur':19B 'initi':32B 'leak':35B 'let':6A 'librari':3A,25B,60C 'local':8A,43B,68C 'memori':5A,36B 'microsoft':21B,57C 'never':31B 'read':10A,26B,46B 'resourc':28B,55C 'see':51B 'uniniti':4A,54C 'use':52C 'user':9A 'window':1A,20B,23B,58C","nicknames":[],"mitigations":[],"who_affected":"Windows machines with the Windows Codecs Library installed are the systems in scope. Exploitation needs an existing local account, so shared or multi-user Windows hosts matter most. unknown for which exact Windows builds are affected.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["codecs","infrastructure","medium","windows"],"campaign_type":null,"search_a":"'-2026':13A,16A '-96150':14A,17A 'codec':2A 'cve':12A,15A 'data':11A 'let':6A 'librari':3A 'local':8A 'memori':5A 'read':10A 'uniniti':4A 'user':9A 'window':1A","search_b":"'account':44B 'attack':40B 'author':39B 'codec':18B,24B 'content':37B 'inform':47B 'infrastructur':19B 'initi':32B 'leak':35B 'librari':25B 'local':43B 'memori':36B 'microsoft':21B 'never':31B 'read':26B,46B 'resourc':28B 'see':51B 'window':20B,23B","search_c":"'allow':61C 'attack':64C 'author':63C 'codec':59C 'disclos':66C 'inform':67C 'librari':60C 'local':68C 'microsoft':57C 'resourc':55C 'uniniti':54C 'use':52C 'window':58C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:22:12+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-96150","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-96150","severity":null,"published_at":"2026-11-10T19:22:12+00:00","modified_at":"2026-11-10T19:22:12+00:00","first_seen_at":"2026-11-10T19:25:31+00:00","fetched_at":"2026-11-10T19:25:31+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"}