{"id":"CVE-2026-112722","kind":"vulnerability","aliases":["CVE-2026-112722"],"related":[],"title":"Microsoft Word: heap buffer overflow lets a remote attacker run code","description":"Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.","summary":"A heap-based buffer overflow in Microsoft Office Word lets an unauthorized attacker execute code over a network. The sources give no further detail on the trigger or the affected versions.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Microsoft Office Word","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["microsoft-office","microsoft-word","other","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:18:30+00:00","first_seen_at":"2026-11-10T19:24:30+00:00","triaged_at":"2026-11-10T19:32:02+00:00","updated_at":"2026-11-10T19:32:02+00:00","category":"other","confidence":0.5,"triage":{"at":"2026-11-10T19:32:02Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Microsoft Word: heap buffer overflow lets a remote attacker run code","impact":"high","summary":"A heap-based buffer overflow in Microsoft Office Word lets an unauthorized attacker execute code over a network. The sources give no further detail on the trigger or the affected versions.","audience":"businesses","category":"other","nicknames":[],"who_cares":["microsoft-word","microsoft-office","windows"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"Attacker runs code on the victim's machine over the network","analyst_note":"Confirm affected Word versions, patch release and whether a document must be opened, from the Microsoft Security Response Center advisory for CVE-2026-112722.","how_to_check":"unknown","plain_action":"","product_name":"Microsoft Office Word","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":0.000644,"input_tokens":4494,"output_tokens":389,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Confirm affected Word versions, patch release and whether a document must be opened, from the Microsoft Security Response Center advisory for CVE-2026-112722.","search":"'-112722':14A,17A '-2026':13A,16A 'affect':59B 'allow':70C 'attack':9A,42B,73C 'base':32B,63C 'buffer':4A,33B,64C 'code':11A,44B,76C 'cve':12A,15A 'detail':53B 'execut':43B,75C 'give':50B 'heap':3A,31B,62C 'heap-bas':30B,61C 'let':6A,39B 'microsoft':1A,18A,22B,25B,36B,67C 'microsoft-offic':21B 'microsoft-word':24B 'network':47B,79C 'offic':23B,37B,68C 'office':19A 'overflow':5A,34B,65C 'remot':8A 'run':10A 'sourc':49B 'trigger':56B 'unauthor':41B,72C 'version':60B 'window':28B 'word':2A,20A,26B,38B,69C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["microsoftofficeword","officeword"],"ptokens":["microsoft","office","word"],"labels":["high","microsoftoffice","microsoftword","other","vendor","windows"],"campaign_type":null,"search_a":"'-112722':14A,17A '-2026':13A,16A 'attack':9A 'buffer':4A 'code':11A 'cve':12A,15A 'heap':3A 'let':6A 'microsoft':1A,18A 'office':19A 'overflow':5A 'remot':8A 'run':10A 'word':2A,20A","search_b":"'affect':59B 'attack':42B 'base':32B 'buffer':33B 'code':44B 'detail':53B 'execut':43B 'give':50B 'heap':31B 'heap-bas':30B 'let':39B 'microsoft':22B,25B,36B 'microsoft-offic':21B 'microsoft-word':24B 'network':47B 'offic':23B,37B 'overflow':34B 'sourc':49B 'trigger':56B 'unauthor':41B 'version':60B 'window':28B 'word':26B,38B","search_c":"'allow':70C 'attack':73C 'base':63C 'buffer':64C 'code':76C 'execut':75C 'heap':62C 'heap-bas':61C 'microsoft':67C 'network':79C 'offic':68C 'overflow':65C 'unauthor':72C 'word':69C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:30+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/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-2026-112722","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112722","severity":null,"published_at":"2026-11-10T19:18:30+00:00","modified_at":"2026-11-10T19:18:30+00:00","first_seen_at":"2026-11-10T19:24:30+00:00","fetched_at":"2026-11-10T19:24:30+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"}