{"id":"CVE-2016-7262","kind":"vulnerability","aliases":["CVE-2016-7262"],"related":[],"title":"Microsoft Excel: Microsoft Office Security Feature Bypass Vulnerability","description":"Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel 2016, Office Compatibility Pack SP3, and Excel Viewer allow user-assisted remote attackers to execute arbitrary commands via a crafted cell that is mishandled upon a click, aka \"Microsoft Office Security Feature Bypass Vulnerability.\"","summary":"A Microsoft Office flaw lets a crafted file bypass a security feature and run arbitrary commands on the machine that opens it. CISA lists it as actively exploited in the wild.","severity":"high","cvss":7.8,"epss":0.57733,"exploited":true,"exploited_at":"2022-03-03T00:00:00+00:00","products":[{"name":"Microsoft Excel","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["excel","exploited","infrastructure","microsoft-office","windows"],"not_affected_if":["no-office-installed"],"how_to_check":"Check whether Microsoft Excel and Office are installed and which build is present, for example in Excel via File > Account > About Excel.","fix":"Apply the Microsoft Office security updates for this CVE per the vendor instructions (CISA required action); the specific patched build is not stated in the sources.","status":"open","published_at":"2016-12-20T06:59:00+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:24:04+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:24:04Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft Office security updates for this CVE per the vendor instructions (CISA required action); the specific patched build is not stated in the sources.\nunknown","reach":"unknown","impact":"high","summary":"A Microsoft Office flaw lets a crafted file bypass a security feature and run arbitrary commands on the machine that opens it. CISA lists it as actively exploited in the wild.","category":"infrastructure","who_cares":["excel","microsoft-office","windows"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker runs arbitrary commands on the victim's machine via a crafted document.","analyst_note":"Find the patched Office build numbers and whether the attack vector needs a user to open a file, from the Microsoft advisory for CVE-2016-7262 and the CISA KEV entry.","how_to_check":"Check whether Microsoft Excel and Office are installed and which build is present, for example in Excel via File > Account > About Excel.\nunknown","needs_analyst":true,"not_affected_if":["no-office-installed"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000487,"input_tokens":2835,"output_tokens":406,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2016':10A,13A '-7262':11A,14A '2007':57C '2010':60C '2013':63C,66C '2016':70C 'activ':50B 'aka':98C 'allow':78C 'arbitrari':38B,86C 'assist':81C 'attack':83C 'bypass':7A,32B,103C 'cell':91C 'cisa':46B 'click':97C 'command':39B,87C 'compat':72C 'craft':30B,90C 'cve':9A,12A 'excel':2A,16A,17B,56C,59C,62C,65C,69C,76C 'execut':85C 'exploit':18B,51B 'featur':6A,35B,102C 'file':31B 'flaw':27B 'infrastructur':19B 'let':28B 'list':47B 'machin':42B 'microsoft':1A,3A,15A,21B,25B,55C,99C 'microsoft-offic':20B 'mishandl':94C 'offic':4A,22B,26B,71C,100C 'open':44B 'pack':73C 'remot':82C 'rt':67C 'run':37B 'secur':5A,34B,101C 'sp1':64C,68C 'sp2':61C 'sp3':58C,74C 'upon':95C 'user':80C 'user-assist':79C 'via':88C 'viewer':77C 'vulner':8A,104C 'wild':54B 'window':23B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2016-12-20T06:59:00+00:00","kev":{"dateAdded":"2022-03-03","dueDate":"2022-03-24","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2016-7262","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2016-7262","severity":null,"published_at":"2022-03-03T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T10:39:07+00:00","note":null},{"source":"epss","external_id":"CVE-2016-7262","url":"https://api.first.org/data/v1/epss?cve=CVE-2016-7262","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:44+00:00","fetched_at":"2026-10-23T19:13:44+00:00","note":null},{"source":"nvd","external_id":"CVE-2016-7262","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-7262","severity":null,"published_at":"2016-12-20T06:59:00+00:00","modified_at":"2026-06-17T00:52:53+00:00","first_seen_at":"2026-10-23T21:57:35+00:00","fetched_at":"2026-10-23T21:57:35+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}