{"id":"CVE-2018-8631","aliases":["EUVD-2018-20242","GHSA-9mgp-pmwj-v879"],"status":"published","title":"A remote code execution vulnerability exists when Internet Explorer improperly accesses objects...","description":"A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka \"Internet Explorer Memory Corruption Vulnerability.\" This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.68493,"percentile":0.99341,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-787"],"published":"2018-12-12T00:00:00Z","modified":"2026-06-17T02:05:13Z","exploits":[{"source":"exploitdb","id":"EDB-46001","title":"Microsoft Windows - 'jscript!JsArrayFunctionHeapSort' Out-of-Bounds Write","type":"dos","platform":"windows","date":"2018-12-18","verified":true,"url":"https://www.exploit-db.com/exploits/46001"}],"products":[{"vendor":"microsoft","product":"internet explorer 10"},{"vendor":"microsoft","product":"internet explorer 11"},{"vendor":"microsoft","product":"internet explorer 9"},{"vendor":"microsoft","product":"internet_explorer"}],"references":[{"url":"http://www.securityfocus.com/bid/106118","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8631","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://www.exploit-db.com/exploits/46001/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-8631"},{"url":"https://github.com/advisories/GHSA-9mgp-pmwj-v879"}],"sources":{"cve":[{"id":"CVE-2018-8631","description":"A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka \"Internet Explorer Memory Corruption Vulnerability.\" This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.","status":"published","published":"2018-12-12T00:00:00Z","modified":"2024-08-05T07:02:25.891Z","updated_at":"2026-11-02T14:35:04.172099Z"}],"euvd":[{"id":"EUVD-2018-20242","description":"A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka \"Internet Explorer Memory Corruption Vulnerability.\" This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.","status":"published","published":"2018-12-12T00:00:00Z","modified":"2024-08-05T07:02:25Z","updated_at":"2026-11-03T02:40:02.008103Z"}],"ghsa":[{"id":"GHSA-9mgp-pmwj-v879","title":"A remote code execution vulnerability exists when Internet Explorer improperly accesses objects...","description":"A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka \"Internet Explorer Memory Corruption Vulnerability.\" This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.","status":"published","published":"2022-05-13T01:16:05Z","modified":"2023-02-01T05:04:47Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:50:11.446996Z"}],"nvd":[{"id":"CVE-2018-8631","description":"A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka \"Internet Explorer Memory Corruption Vulnerability.\" This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.","status":"published","published":"2018-12-12T00:29:01.543Z","modified":"2026-06-17T02:05:13.663Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.6,"vector":"AV:N/AC:H/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:04:49.995593Z"}]}}