{"id":"CVE-2013-1347","kind":"vulnerability","aliases":["CVE-2013-1347"],"related":[],"title":"Microsoft Internet Explorer: Microsoft Internet Explorer Remote Code Execution Vulnerability","description":"Microsoft Internet Explorer 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly allocated or (2) is deleted, as exploited in the wild in May 2013.","summary":"A memory corruption flaw in Internet Explorer lets a malicious web page run code as the logged-in user. It is listed as actively exploited in the wild.","severity":"critical","cvss":9.3,"epss":0.7774,"exploited":true,"exploited_at":"2022-03-03T00:00:00+00:00","products":[{"name":"Microsoft Internet Explorer","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","internet-explorer","windows"],"not_affected_if":["internet-explorer-not-installed"],"how_to_check":null,"fix":"Apply the Microsoft security updates for Internet Explorer per vendor instructions (CISA KEV required action); the specific patch numbers are not in the sources.","status":"open","published_at":"2013-05-05T11:07:00+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:26:14+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:26:14Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft security updates for Internet Explorer per vendor instructions (CISA KEV required action); the specific patch numbers are not in the sources.","reach":"internet","impact":"high","summary":"A memory corruption flaw in Internet Explorer lets a malicious web page run code as the logged-in user. It is listed as actively exploited in the wild.","category":"infrastructure","who_cares":["internet-explorer","windows"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker runs code as the current user after a victim visits a page.","analyst_note":"Find the Microsoft bulletin (MS13-037 era) and confirm affected IE versions and patch IDs at the KEV and NVD entries for CVE-2013-1347.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["internet-explorer-not-installed"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000456,"input_tokens":2839,"output_tokens":344,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-1347':13A,16A '-2013':12A,15A '1':79C '2':85C '2013':95C '8':58C 'access':75C 'activ':50B 'alloc':83C 'allow':67C 'arbitrari':72C 'attack':69C 'code':8A,39B,73C 'corrupt':28B 'cve':11A,14A 'delet':87C 'execut':9A,71C 'exploit':20B,51B,89C 'explor':3A,6A,24B,32B,57C 'explorer':19A 'flaw':29B 'handl':62C 'infrastructur':21B 'internet':2A,5A,18A,23B,31B,56C 'internet-explor':22B 'let':33B 'list':48B 'log':43B 'logged-in':42B 'malici':35B 'may':94C 'memori':27B,65C 'microsoft':1A,4A,17A,55C 'object':63C,77C 'page':37B 'proper':61C,82C 'remot':7A,68C 'run':38B 'user':45B 'vulner':10A 'web':36B 'wild':54B,92C 'window':25B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2013-05-05T11:07:00+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:N/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-2013-1347","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2013-1347","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":"2026-10-25T15:39:43+00:00","note":null},{"source":"epss","external_id":"CVE-2013-1347","url":"https://api.first.org/data/v1/epss?cve=CVE-2013-1347","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-2013-1347","url":"https://nvd.nist.gov/vuln/detail/CVE-2013-1347","severity":null,"published_at":"2013-05-05T11:07:00+00:00","modified_at":"2026-06-16T23:51:15+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"}