{"id":"CVE-2011-1347","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-1347","generatedAt":"2026-10-27T19:56:14.721Z","title":"Unspecified vulnerability in Microsoft Internet Explorer 8 on Windows 7 allows remote attackers to bypass Protected Mode and create arbitrary files by leveraging access to a Low integrity process, as demonstrated by Stephen Fewer as the third of three…","description":"Unspecified vulnerability in Microsoft Internet Explorer 8 on Windows 7 allows remote attackers to bypass Protected Mode and create arbitrary files by leveraging access to a Low integrity process, as demonstrated by Stephen Fewer as the third of three chained vulnerabilities during a Pwn2Own competition at CanSecWest 2011.","published":"2011-03-10T20:55:01.000Z","lastModified":"2026-06-16T23:29:12.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":8.8,"severity":"HIGH","vector":"AV:N/AC:M/Au:N/C:N/I:C/A:C"},"cwe":[],"affected":["microsoft/internet explorer"],"epss":{"score":0.27967,"percentile":0.98088,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 28.0%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://dvlabs.tippingpoint.com/blog/2011/02/02/pwn2own-2011","source":"cve@mitre.org"},{"url":"http://twitter.com/aaronportnoy/statuses/45642180118855680","source":"cve@mitre.org"},{"url":"http://twitter.com/msftsecresponse/statuses/45646985998516224","source":"cve@mitre.org"},{"url":"http://www.computerworld.com/s/article/9214002/Safari_IE_hacked_first_at_Pwn2Own","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/46821","source":"cve@mitre.org"},{"url":"http://www.zdnet.com/blog/security/pwn2own-2011-ie8-on-windows-7-hijacked-with-3-vulnerabilities/8367","source":"cve@mitre.org"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-057","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/66064","source":"cve@mitre.org"},{"url":"https://threatpost.com/en_us/blogs/pwn2own-winner-stephen-fewer-031011","source":"cve@mitre.org"},{"url":"http://dvlabs.tippingpoint.com/blog/2011/02/02/pwn2own-2011","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://twitter.com/aaronportnoy/statuses/45642180118855680","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://twitter.com/msftsecresponse/statuses/45646985998516224","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.computerworld.com/s/article/9214002/Safari_IE_hacked_first_at_Pwn2Own","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/46821","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.zdnet.com/blog/security/pwn2own-2011-ie8-on-windows-7-hijacked-with-3-vulnerabilities/8367","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-057","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/66064","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://threatpost.com/en_us/blogs/pwn2own-winner-stephen-fewer-031011","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-1347","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."}