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CVE-2011-1346

40
FAUCET Score

CVE-2011-1346 describes an unspecified vulnerability in Microsoft Internet Explorer 8 running on Windows 7. This critical flaw allows remote attackers to execute arbitrary code on affected systems. With a CVSS score of 9.3, it is a high-severity vulnerability requiring no authentication and moderate attack complexity, leading to complete compromise of confidentiality, integrity, and availability. This vulnerability was demonstrated as part of a successful exploit chain during the Pwn2Own 2011 competition, indicating its exploitability in a real-world scenario. While there are no publicly available exploit modules or significant community discussion, its historical use in a high-profile competition highlights its potential danger.

Impacted Technologies

VendorProductVersion(s)CPE
8CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
26.17%
Probability of exploitation in next 30 days
EPSS Percentile
97.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2617 is in the 91st percentile among its peer group of 8,918 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

dvlabs.tippingpoint.com / blog/2011/02/02/pwn2own-2011
exchange.xforce.ibmcloud.com / vulnerabilities/66063
threatpost.com / en_us/blogs/pwn2own-winner-stephen-fewer-031011
twitter.com / aaronportnoy/statuses/45642180118855680
twitter.com / msftsecresponse/statuses/45646985998516224
computerworld.com / s/article/9214002/Safari_IE_hacked_first_at_Pwn2Own
securityfocus.com / bid/46821
zdnet.com / blog/security/pwn2own-2011-ie8-on-windows-7-hijacked-with-3-vulnerabilities/8367