{"id":"CVE-2026-112741","kind":"vulnerability","aliases":["CVE-2026-112741"],"related":[],"title":"Microsoft Word: heap buffer overflow lets an attacker run code over a network","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 run code on a machine over a network. The sources give a CVSS score of 8.8 and no further technical detail.","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","other","windows","word"],"not_affected_if":[],"how_to_check":"- Open Word and check the version under File > Account (or Help > About), then compare it with Microsoft's security update guide for CVE-2026-112741.","fix":null,"status":"open","published_at":"2026-11-10T19:18:33+00:00","first_seen_at":"2026-11-10T19:24:31+00:00","triaged_at":"2026-11-10T19:31:51+00:00","updated_at":"2026-11-10T19:31:51+00:00","category":"other","confidence":0.5,"triage":{"at":"2026-11-10T19:31:51Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Microsoft Word: heap buffer overflow lets an attacker run code over a network","impact":"high","summary":"A heap-based buffer overflow in Microsoft Office Word lets an unauthorized attacker run code on a machine over a network. The sources give a CVSS score of 8.8 and no further technical detail.","audience":"everyone","category":"other","nicknames":[],"who_cares":["microsoft-office","windows","word"],"confidence":0.5,"fix_status":"unknown","needs_auth":"unknown","worst_case":"Attacker runs code on the machine through a crafted Word file or request.","analyst_note":"Find Microsoft's security update guide entry for CVE-2026-112741 to get affected versions, the fixed build and whether user interaction is required.","how_to_check":"- Open Word and check the version under File > Account (or Help > About), then compare it with Microsoft's security update guide for CVE-2026-112741.\n- unknown","plain_action":"Update Microsoft Word through Microsoft Update once Microsoft publishes the fix for this flaw.","product_name":"Microsoft Office Word","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown. The sources describe only the flaw type and the network attack path; they do not list affected Word versions, whether a document must be opened, or whether preview panes are a trigger.","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000715,"input_tokens":4494,"output_tokens":532,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find Microsoft's security update guide entry for CVE-2026-112741 to get affected versions, the fixed build and whether user interaction is required.","search":"'-112741':16A,19A '-2026':15A,18A '8.8':58B 'allow':73C 'attack':8A,42B,76C 'base':32B,66C 'buffer':4A,33B,67C 'code':10A,44B,79C 'cve':14A,17A 'cvss':55B 'detail':63B 'execut':78C 'give':53B 'heap':3A,31B,65C 'heap-bas':30B,64C 'let':6A,39B 'machin':47B 'microsoft':1A,20A,24B,36B,70C 'microsoft-offic':23B 'network':13A,50B,82C 'offic':25B,37B,71C 'office':21A 'overflow':5A,34B,68C 'run':9A,43B 'score':56B 'sourc':52B 'technic':62B 'unauthor':41B,75C 'window':27B 'word':2A,22A,28B,38B,72C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"everyone","plain_action":"Update Microsoft Word through Microsoft Update once Microsoft publishes the fix for this flaw.","pkeys":["microsoftofficeword","officeword"],"ptokens":["microsoft","office","word"],"labels":["high","microsoftoffice","other","vendor","windows","word"],"campaign_type":null,"search_a":"'-112741':16A,19A '-2026':15A,18A 'attack':8A 'buffer':4A 'code':10A 'cve':14A,17A 'heap':3A 'let':6A 'microsoft':1A,20A 'network':13A 'office':21A 'overflow':5A 'run':9A 'word':2A,22A","search_b":"'8.8':58B 'attack':42B 'base':32B 'buffer':33B 'code':44B 'cvss':55B 'detail':63B 'give':53B 'heap':31B 'heap-bas':30B 'let':39B 'machin':47B 'microsoft':24B,36B 'microsoft-offic':23B 'network':50B 'offic':25B,37B 'overflow':34B 'run':43B 'score':56B 'sourc':52B 'technic':62B 'unauthor':41B 'window':27B 'word':28B,38B","search_c":"'allow':73C 'attack':76C 'base':66C 'buffer':67C 'code':79C 'execut':78C 'heap':65C 'heap-bas':64C 'microsoft':70C 'network':82C 'offic':71C 'overflow':68C 'unauthor':75C 'word':72C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:33+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-2026-112741","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112741","severity":null,"published_at":"2026-11-10T19:18:33+00:00","modified_at":"2026-11-10T19:18:34+00:00","first_seen_at":"2026-11-10T19:24:31+00:00","fetched_at":"2026-11-10T19:24:31+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"}