Is CVE-2011-1346 in the CISA KEV catalog?

No. CVE-2011-1346 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-1346?

CVE-2011-1346 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2011-1346?

CVE-2011-1346 has an EPSS score of 26.17% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2011-1346

HIGHEPSS 98th pctl

9.3

CVSS v2

NVD

Description

Unspecified vulnerability in Microsoft Internet Explorer 8 on Windows 7 allows remote attackers to execute arbitrary code via unknown vectors, as demonstrated by Stephen Fewer as the second of three chained vulnerabilities during a Pwn2Own competition at CanSecWest 2011.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

26.17%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

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://exchange.xforce.ibmcloud.com/vulnerabilities/66063
https://threatpost.com/en_us/blogs/pwn2own-winner-stephen-fewer-031011

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.