What’s Vulnerable › Vulnerabilities

CVE-2011-1347

• Severity: high (CVSS 8.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 28.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-03-10 · updated 2026-06-16

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.

Affected products

• Microsoft Internet Explorer 11: 8

References

• 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

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