{"id":"CVE-2026-119995","kind":"vulnerability","aliases":["CVE-2026-119995"],"related":[],"title":"Microsoft Outlook: heap buffer overflow lets remote attacker run code","description":"Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","summary":"A heap-based buffer overflow in Microsoft Office Outlook lets an unauthorized attacker run code over a network. The sources give no product versions, fix, or trigger details.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Microsoft Office Outlook","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["microsoft-office","other","outlook","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:20:24+00:00","first_seen_at":"2026-11-10T19:25:07+00:00","triaged_at":"2026-11-10T19:44:26+00:00","updated_at":"2026-11-10T19:44:26+00:00","category":"other","confidence":0.5,"triage":{"at":"2026-11-10T19:44:26Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Microsoft Outlook: heap buffer overflow lets remote attacker run code","impact":"high","summary":"A heap-based buffer overflow in Microsoft Office Outlook lets an unauthorized attacker run code over a network. The sources give no product versions, fix, or trigger details.","audience":"everyone","category":"other","nicknames":[],"who_cares":["outlook","microsoft-office","windows"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"Attacker runs code on the affected machine over the network.","analyst_note":"Check the Microsoft Security Response Center advisory for CVE-2026-119995 for affected versions, fixed builds, and whether preview pane or message opening is required.","how_to_check":"- unknown","plain_action":"Keep Microsoft Outlook up to date with Windows and Office updates; the sources do not name a specific fixed version.","product_name":"Microsoft Office Outlook","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000665,"input_tokens":4498,"output_tokens":431,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check the Microsoft Security Response Center advisory for CVE-2026-119995 for affected versions, fixed builds, and whether preview pane or message opening is required.","search":"'-119995':13A,16A '-2026':12A,15A 'allow':64C 'attack':8A,39B,67C 'base':29B,57C 'buffer':4A,30B,58C 'code':10A,41B,70C 'cve':11A,14A 'detail':54B 'execut':69C 'fix':51B 'give':47B 'heap':3A,28B,56C 'heap-bas':27B,55C 'let':6A,36B 'microsoft':1A,17A,21B,33B,61C 'microsoft-offic':20B 'network':44B,73C 'offic':22B,34B,62C 'office':18A 'outlook':2A,19A,24B,35B,63C 'overflow':5A,31B,59C 'product':49B 'remot':7A 'run':9A,40B 'sourc':46B 'trigger':53B 'unauthor':38B,66C 'version':50B 'window':25B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"everyone","plain_action":"Keep Microsoft Outlook up to date with Windows and Office updates; the sources do not name a specific fixed version.","pkeys":["microsoftofficeoutlook","officeoutlook"],"ptokens":["microsoft","office","outlook"],"labels":["high","microsoftoffice","other","outlook","vendor","windows"],"campaign_type":null,"search_a":"'-119995':13A,16A '-2026':12A,15A 'attack':8A 'buffer':4A 'code':10A 'cve':11A,14A 'heap':3A 'let':6A 'microsoft':1A,17A 'office':18A 'outlook':2A,19A 'overflow':5A 'remot':7A 'run':9A","search_b":"'attack':39B 'base':29B 'buffer':30B 'code':41B 'detail':54B 'fix':51B 'give':47B 'heap':28B 'heap-bas':27B 'let':36B 'microsoft':21B,33B 'microsoft-offic':20B 'network':44B 'offic':22B,34B 'outlook':24B,35B 'overflow':31B 'product':49B 'run':40B 'sourc':46B 'trigger':53B 'unauthor':38B 'version':50B 'window':25B","search_c":"'allow':64C 'attack':67C 'base':57C 'buffer':58C 'code':70C 'execut':69C 'heap':56C 'heap-bas':55C 'microsoft':61C 'network':73C 'offic':62C 'outlook':63C 'overflow':59C 'unauthor':66C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:20:24+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-119995","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119995","severity":null,"published_at":"2026-11-10T19:20:24+00:00","modified_at":"2026-11-10T19:20:25+00:00","first_seen_at":"2026-11-10T19:25:07+00:00","fetched_at":"2026-11-10T19:25:07+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"}