CVE-2011-1347
HIGH · CVSS 8.8EPSS 28.0%EU EUVD
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.
Key facts
- CVSS score
- 8.8 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:C/A:C- EPSS score
- 28.0% (98th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-1354)
- Published
- March 10, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-1354 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- microsoft / internet explorer
- microsoft / windows 7
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
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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