{"id":"CVE-2018-8353","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-8353","generatedAt":"2026-10-29T01:54:20.662Z","title":"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 affects Internet Explorer 9, Internet Explorer 11, Internet…","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 affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10. This CVE ID is unique from CVE-2018-8355, CVE-2018-8359, CVE-2018-8371, CVE-2018-8372, CVE-2018-8373, CVE-2018-8385, CVE-2018-8389, CVE-2018-8390.","published":"2018-08-15T17:29:06.000Z","lastModified":"2026-06-17T02:04:41.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-416"],"affected":["microsoft/internet explorer"],"epss":{"score":0.67339,"percentile":0.99302,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.62648,"percentile":0.99182},{"date":"2026-09-22","score":0.6769,"percentile":0.99284}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2018-08-28","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":45279,"kind":"exploit","title":"Microsoft Windows - JScript RegExp.lastIndex Use-After-Free","url":"https://www.exploit-db.com/exploits/45279","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/45279.html","file":"exploits/windows/dos/45279.html","published":"2018-08-28","added":"2018-08-28","updated":"2018-08-28","author":"Google Security Research","type":"dos","platform":"windows","port":null,"verified":true,"codes":["CVE-2018-8353"],"tags":"Use After Free (UAF)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1587"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 67.3%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.6769,"from":0.62648,"percentile":0.99284},"summary":"EPSS moved from 62.6% to 67.7% probability of exploitation in the next thirty days."}],"references":[{"url":"http://www.securityfocus.com/bid/105034","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://www.securitytracker.com/id/1041483","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8353","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"https://www.exploit-db.com/exploits/45279/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://www.securityfocus.com/bid/105034","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1041483","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8353","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/45279/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-8353","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}