{"id":"CVE-2015-2502","kind":"vulnerability","aliases":["CVE-2015-2502"],"related":[],"title":"Microsoft Internet Explorer: Microsoft Internet Explorer Memory Corruption Vulnerability","description":"Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka \"Memory Corruption Vulnerability,\" as exploited in the wild in August 2015.","summary":"Microsoft Internet Explorer has a memory corruption flaw that lets an attacker run code or crash the browser. It is listed in CISA's Known Exploited Vulnerabilities catalog, so attacks have been seen in the wild.","severity":"critical","cvss":9.3,"epss":0.51001,"exploited":true,"exploited_at":"2022-04-13T00:00:00+00:00","products":[{"name":"Microsoft Internet Explorer","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["browser","exploited","internet-explorer","other","windows"],"not_affected_if":["no-internet-explorer-installed"],"how_to_check":"Check whether Internet Explorer is installed and which version it is, for example with the Windows 'winver' or Internet Explorer About dialog; unknown whether the sources give a specific file or setting.","fix":"Apply the Microsoft security update for Internet Explorer per vendor instructions, as CISA requires; unknown which exact patch or version the sources name.","status":"open","published_at":"2015-08-19T10:59:00+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:17:59+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-23T21:17:59Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft security update for Internet Explorer per vendor instructions, as CISA requires; unknown which exact patch or version the sources name.","reach":"internet","impact":"high","summary":"Microsoft Internet Explorer has a memory corruption flaw that lets an attacker run code or crash the browser. It is listed in CISA's Known Exploited Vulnerabilities catalog, so attacks have been seen in the wild.","category":"other","who_cares":["windows","internet-explorer","browser"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker runs code in the browser context on the victim's machine.","analyst_note":"Confirm the affected and fixed IE versions and the specific Microsoft bulletin from the Microsoft security advisory for CVE-2015-2502.","how_to_check":"Check whether Internet Explorer is installed and which version it is, for example with the Windows 'winver' or Internet Explorer About dialog; unknown whether the sources give a specific file or setting.","needs_analyst":true,"not_affected_if":["no-internet-explorer-installed"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000493,"input_tokens":2840,"output_tokens":418,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2015':11A,14A '-2502':12A,15A '11':67C '2015':99C '7':65C 'aka':88C 'allow':68C 'arbitrari':73C 'attack':37B,55B,70C 'august':98C 'browser':19B,43B 'catalog':53B 'caus':76C 'cisa':48B 'code':39B,74C 'corrupt':8A,32B,82C,90C 'craft':85C 'crash':41B 'cve':10A,13A 'denial':78C 'execut':72C 'exploit':20B,51B,93C 'explor':3A,6A,23B,28B,64C 'explorer':18A 'flaw':33B 'internet':2A,5A,17A,22B,27B,63C 'internet-explor':21B 'known':50B 'let':35B 'list':46B 'memori':7A,31B,81C,89C 'microsoft':1A,4A,16A,26B,62C 'remot':69C 'run':38B 'seen':58B 'servic':80C 'site':87C 'via':83C 'vulner':9A,52B,91C 'web':86C 'wild':61B,96C 'window':25B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2015-08-19T10:59:00+00:00","kev":{"dateAdded":"2022-04-13","dueDate":"2022-05-04","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-2015-2502","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2015-2502","severity":null,"published_at":"2022-04-13T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T17:39:57+00:00","note":null},{"source":"epss","external_id":"CVE-2015-2502","url":"https://api.first.org/data/v1/epss?cve=CVE-2015-2502","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:45+00:00","fetched_at":"2026-10-23T19:13:45+00:00","note":null},{"source":"nvd","external_id":"CVE-2015-2502","url":"https://nvd.nist.gov/vuln/detail/CVE-2015-2502","severity":null,"published_at":"2015-08-19T10:59:00+00:00","modified_at":"2026-06-17T00:24:12+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"}