{"id":"CVE-2019-0539","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-0539","generatedAt":"2026-10-28T23:56:10.695Z","title":"A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka \"Chakra Scripting Engine Memory Corruption Vulnerability.\" This affects Microsoft Edge, ChakraCore.","description":"A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka \"Chakra Scripting Engine Memory Corruption Vulnerability.\" This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2019-0567, CVE-2019-0568.","published":"2019-01-08T21:29:00.000Z","lastModified":"2026-06-17T02:08:19.000Z","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-787"],"affected":["microsoft/chakracore","microsoft/edge"],"epss":{"score":0.82902,"percentile":0.9967,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.75549,"percentile":0.99506},{"date":"2026-09-22","score":0.82902,"percentile":0.99656}]},"kev":{"listed":false},"exploits":{"count":3,"verified":true,"firstPublished":"2019-01-18","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":46485,"kind":"exploit","title":"Microsoft Edge Chakra 1.11.4 - Read Permission via Type Confusion","url":"https://www.exploit-db.com/exploits/46485","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/46485.html","file":"exploits/windows/dos/46485.html","published":"2019-03-04","added":"2019-03-04","updated":"2019-03-04","author":"Fahad Aid Alharbi","type":"dos","platform":"windows","port":null,"verified":false,"codes":["CVE-2019-0539"],"tags":"Type Confusion","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null},{"edbId":46204,"kind":"exploit","title":"Microsoft Edge Chakra - 'InitClass' Type Confusion","url":"https://www.exploit-db.com/exploits/46204","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/46204.js","file":"exploits/windows/dos/46204.js","published":"2019-01-18","added":"2019-01-18","updated":"2019-01-18","author":"Google Security Research","type":"dos","platform":"windows","port":null,"verified":true,"codes":["CVE-2019-0539"],"tags":"Type Confusion","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1703&desc=2"},{"edbId":46203,"kind":"exploit","title":"Microsoft Edge Chakra - 'NewScObjectNoCtor' or 'InitProto' Type Confusion","url":"https://www.exploit-db.com/exploits/46203","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/46203.txt","file":"exploits/windows/dos/46203.txt","published":"2019-01-18","added":"2019-01-18","updated":"2019-01-18","author":"Google Security Research","type":"dos","platform":"windows","port":null,"verified":true,"codes":["CVE-2019-0567","CVE-2019-0539"],"tags":"Type Confusion","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1702"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 82.9%, higher than 100% 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":0.82902,"from":0.75549,"percentile":0.99656},"summary":"EPSS moved from 75.5% to 82.9% probability of exploitation in the next thirty days."}],"references":[{"url":"http://www.securityfocus.com/bid/106401","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0539","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"https://www.exploit-db.com/exploits/46203/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"https://www.exploit-db.com/exploits/46204/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"https://www.exploit-db.com/exploits/46485/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://www.securityfocus.com/bid/106401","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0539","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/46203/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/46204/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/46485/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-0539","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."}