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Vulnerability record · CVE-2011-1347 · published 10 March 2011

CVE-2011-1347: Microsoft internet explorer vulnerability

Microsoft · Internet Explorer

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.

8.8 CVSS 2.0 High EPSS 28% · top 2.0%
8.8CVSS 2.0 base score
28%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
18References
16 Jun 2026Last modified by NVD

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.

AV:N/AC:M/Au:N/C:N/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://dvlabs.tippingpoint.com/blog/2011/02/02/pwn2own-2011
http://twitter.com/aaronportnoy/statuses/45642180118855680
http://twitter.com/msftsecresponse/statuses/45646985998516224
http://www.computerworld.com/s/article/9214002/Safari_IE_hacked_first_at_Pwn2Own
http://www.securityfocus.com/bid/46821
http://www.zdnet.com/blog/security/pwn2own-2011-ie8-on-windows-7-hijacked-with-3-vulnerabilities/8367
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-057
https://exchange.xforce.ibmcloud.com/vulnerabilities/66064
https://threatpost.com/en_us/blogs/pwn2own-winner-stephen-fewer-031011
http://dvlabs.tippingpoint.com/blog/2011/02/02/pwn2own-2011
http://twitter.com/aaronportnoy/statuses/45642180118855680
http://twitter.com/msftsecresponse/statuses/45646985998516224
http://www.computerworld.com/s/article/9214002/Safari_IE_hacked_first_at_Pwn2Own
http://www.securityfocus.com/bid/46821
http://www.zdnet.com/blog/security/pwn2own-2011-ie8-on-windows-7-hijacked-with-3-vulnerabilities/8367
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-057
https://exchange.xforce.ibmcloud.com/vulnerabilities/66064
https://threatpost.com/en_us/blogs/pwn2own-winner-stephen-fewer-031011

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2011-1347), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.