{"id":"CVE-2020-0674","kind":"vulnerability","aliases":["CVE-2020-0674"],"related":[],"title":"Microsoft Internet Explorer: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability","description":"A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0673, CVE-2020-0710, CVE-2020-0711, CVE-2020-0712, CVE-2020-0713, CVE-2020-0767.","summary":"Microsoft Internet Explorer's Scripting Engine mishandles objects in memory, causing memory corruption. An attacker who gets a user to load a malicious page can run code as that user.","severity":"high","cvss":7.6,"epss":0.86863,"exploited":true,"exploited_at":"2021-11-03T00:00:00+00:00","products":[{"name":"Microsoft Internet Explorer","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","internet-explorer","other","windows"],"not_affected_if":["no-internet-explorer","patched-systems"],"how_to_check":"Check whether Internet Explorer is installed and enabled on Windows machines the team runs; the sources do not give a registry key or command.","fix":"Apply the Microsoft security update for the Internet Explorer Scripting Engine per vendor instructions; the sources do not name the KB or patched build.","status":"open","published_at":"2020-02-11T22:15:14+00:00","first_seen_at":"2026-10-23T19:11:53+00:00","triaged_at":"2026-10-23T21:37:33+00:00","updated_at":"2026-10-23T21:57:34+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-23T21:37:33Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft security update for the Internet Explorer Scripting Engine per vendor instructions; the sources do not name the KB or patched build.","reach":"internet","impact":"high","summary":"Microsoft Internet Explorer's Scripting Engine mishandles objects in memory, causing memory corruption. An attacker who gets a user to load a malicious page can run code as that user.","category":"other","who_cares":["windows","internet-explorer"],"confidence":0.6,"needs_auth":"no","worst_case":"Remote code runs as the current user after visiting a malicious page.","analyst_note":"Confirm the affected IE and Windows builds and the Microsoft KB for the patch via the Microsoft Security Update Guide entry for CVE-2020-0674.","how_to_check":"Check whether Internet Explorer is installed and enabled on Windows machines the team runs; the sources do not give a registry key or command.","needs_analyst":true,"not_affected_if":["no-internet-explorer","patched-systems"],"user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.00048,"input_tokens":2864,"output_tokens":388,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-0673':91C '-0674':14A,17A '-0710':94C '-0711':97C '-0712':100C '-0713':103C '-0767':106C '-2020':13A,16A,90C,93C,96C,99C,102C,105C 'aka':77C 'attack':41B 'caus':37B 'code':53B,59C 'corrupt':10A,39B,81C 'cve':12A,15A,84C,89C,92C,95C,98C,101C,104C 'engin':8A,32B,69C,79C 'execut':60C 'exist':62C 'exploit':21B 'explor':3A,6A,24B,29B,76C 'explorer':20A 'get':43B 'handl':70C 'id':85C 'internet':2A,5A,19A,23B,28B,75C 'internet-explor':22B 'load':47B 'malici':49B 'memori':9A,36B,38B,73C,80C 'microsoft':1A,4A,18A,27B 'mishandl':33B 'object':34B,71C 'page':50B 'remot':58C 'run':52B 'script':7A,31B,68C,78C 'uniqu':87C 'user':45B,56B 'vulner':11A,61C,82C 'way':65C 'window':26B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2020-02-11T22:15:14+00:00","kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:H/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-2020-0674","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-0674","severity":null,"published_at":"2021-11-03T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:53+00:00","fetched_at":"2026-10-25T12:39:25+00:00","note":null},{"source":"epss","external_id":"CVE-2020-0674","url":"https://api.first.org/data/v1/epss?cve=CVE-2020-0674","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-2020-0674","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-0674","severity":null,"published_at":"2020-02-11T22:15:14+00:00","modified_at":"2026-06-17T02:46:19+00:00","first_seen_at":"2026-10-23T21:57:34+00:00","fetched_at":"2026-10-23T21:57:34+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"}