{"cve":"CVE-2011-1347","nvd":{"published":"2011-03-10T20:55:01.343","modified":"2026-06-16T23:29:12.023","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"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"],"products":["microsoft:internet_explorer"],"source":"nvd","synced_at":"2026-10-19T19:57:56.749847046+00:00"},"epss":{"cve":"CVE-2011-1347","score":0.27967,"percentile":0.98101,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}