{"id":"CVE-2026-118725","kind":"vulnerability","aliases":["CVE-2026-118725"],"related":[],"title":"Microsoft Excel: out-of-bounds read lets an attacker elevate privileges remotely","description":"Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to elevate privileges over a network.","summary":"Microsoft Office Excel has an out-of-bounds read flaw that lets an unauthorized attacker raise their privileges over a network. The sources give a CVSS score of 8.8 and no details on the trigger or the exact affected versions.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["excel","microsoft-office","package","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:19:48+00:00","first_seen_at":"2026-11-10T19:24:54+00:00","triaged_at":"2026-11-10T19:28:16+00:00","updated_at":"2026-11-10T19:28:16+00:00","category":"package","confidence":0.5,"triage":{"at":"2026-11-10T19:28:16Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"network","title":"Microsoft Excel: out-of-bounds read lets an attacker elevate privileges remotely","impact":"high","summary":"Microsoft Office Excel has an out-of-bounds read flaw that lets an unauthorized attacker raise their privileges over a network. The sources give a CVSS score of 8.8 and no details on the trigger or the exact affected versions.","audience":"businesses","category":"package","nicknames":[],"who_cares":["microsoft-office","excel","windows"],"confidence":0.5,"fix_status":"unknown","needs_auth":"unknown","worst_case":"attacker gains elevated privileges over the network","analyst_note":"Find the Microsoft Security Update Guide entry for CVE-2026-118725 to confirm affected Office builds, fixed versions, and whether a user must open a file.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000643,"input_tokens":4498,"output_tokens":387,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the Microsoft Security Update Guide entry for CVE-2026-118725 to confirm affected Office builds, fixed versions, and whether a user must open a file.","search":"'-118725':16A,19A '-2026':15A,18A '8.8':55B 'affect':65B 'allow':76C 'attack':10A,41B,79C 'bound':6A,34B,70C 'cve':14A,17A 'cvss':52B 'detail':58B 'elev':11A,81C 'exact':64B 'excel':2A,20B,28B,75C 'flaw':36B 'give':50B 'let':8A,38B 'microsoft':1A,22B,26B,73C 'microsoft-offic':21B 'network':47B,85C 'offic':23B,27B,74C 'out-of-bound':3A,31B,67C 'packag':24B 'privileg':12A,44B,82C 'rais':42B 'read':7A,35B,71C 'remot':13A 'score':53B 'sourc':49B 'trigger':61B 'unauthor':40B,78C 'version':66B 'window':25B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["excel","high","microsoftoffice","package","windows"],"campaign_type":null,"search_a":"'-118725':16A,19A '-2026':15A,18A 'attack':10A 'bound':6A 'cve':14A,17A 'elev':11A 'excel':2A 'let':8A 'microsoft':1A 'out-of-bound':3A 'privileg':12A 'read':7A 'remot':13A","search_b":"'8.8':55B 'affect':65B 'attack':41B 'bound':34B 'cvss':52B 'detail':58B 'exact':64B 'excel':20B,28B 'flaw':36B 'give':50B 'let':38B 'microsoft':22B,26B 'microsoft-offic':21B 'network':47B 'offic':23B,27B 'out-of-bound':31B 'packag':24B 'privileg':44B 'rais':42B 'read':35B 'score':53B 'sourc':49B 'trigger':61B 'unauthor':40B 'version':66B 'window':25B","search_c":"'allow':76C 'attack':79C 'bound':70C 'elev':81C 'excel':75C 'microsoft':73C 'network':85C 'offic':74C 'out-of-bound':67C 'privileg':82C 'read':71C 'unauthor':78C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:48+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-2026-118725","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118725","severity":null,"published_at":"2026-11-10T19:19:48+00:00","modified_at":"2026-11-10T19:19:48+00:00","first_seen_at":"2026-11-10T19:24:54+00:00","fetched_at":"2026-11-10T19:24:54+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"}