{"id":"CVE-2016-3388","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-3388","generatedAt":"2026-11-05T05:11:18.201Z","title":"Microsoft Internet Explorer 10 and 11 and Microsoft Edge do not properly restrict access to private namespaces, which allows remote attackers to gain privileges via unspecified vectors, aka \"Microsoft Browser Elevation of Privilege Vulnerability,\" a…","description":"Microsoft Internet Explorer 10 and 11 and Microsoft Edge do not properly restrict access to private namespaces, which allows remote attackers to gain privileges via unspecified vectors, aka \"Microsoft Browser Elevation of Privilege Vulnerability,\" a different vulnerability than CVE-2016-3387.","published":"2016-10-14T02:59:25.000Z","lastModified":"2026-06-17T00:45:36.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N"},"cwe":["CWE-264"],"affected":["microsoft/edge","microsoft/internet explorer"],"epss":{"score":0.27587,"percentile":0.98087,"date":"2026-11-04","history":[{"date":"2026-09-21","score":0.25635,"percentile":0.97913},{"date":"2026-09-22","score":0.27587,"percentile":0.97991}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2016-10-20","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":40606,"kind":"exploit","title":"Microsoft Windows Edge/Internet Explorer - Isolated Private Namespace Insecure DACL Privilege Escalation (MS16-118)","url":"https://www.exploit-db.com/exploits/40606","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/local/40606.cpp","file":"exploits/windows/local/40606.cpp","published":"2016-10-20","added":"2016-10-20","updated":"2016-10-21","author":"Google Security Research","type":"local","platform":"windows","port":null,"verified":true,"codes":["CVE-2016-3388","MS16-118"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=879"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 27.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/93382","source":"secure@microsoft.com"},{"url":"http://www.securitytracker.com/id/1036992","source":"secure@microsoft.com"},{"url":"http://www.securitytracker.com/id/1036993","source":"secure@microsoft.com"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-118","source":"secure@microsoft.com"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-119","source":"secure@microsoft.com"},{"url":"https://www.exploit-db.com/exploits/40606/","source":"secure@microsoft.com"},{"url":"http://www.securityfocus.com/bid/93382","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1036992","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1036993","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-118","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-119","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/40606/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-3388","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."}