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CVE-2011-1260

81
FAUCET Score

CVE-2011-1260 is a critical memory corruption vulnerability affecting Microsoft Internet Explorer versions 8 and 9, impacting various Windows operating systems including XP, Vista, and Windows 7. This flaw allows remote attackers to execute arbitrary code by exploiting improper object handling in memory, specifically through uninitialized or deleted objects. With a CVSS score of 9.3, it presents a high risk due to its network-based attack vector and complete compromise potential. While not listed in CISA KEV, exploit modules are publicly available in Metasploit and ExploitDB, indicating a high likelihood of exploitation, despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
8CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:*
9CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*

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
60.85%
Probability of exploitation in next 30 days
EPSS Percentile
99.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: MS11-050 IE mshtml!CObjectElement Use After Free · Jun 16, 2011
ExploitDB: EDB-17409 · Jun 17, 2011
This CVE's current EPSS score of 0.6085 is in the 99th 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

docs.microsoft.com / en-us/security-updates/securitybulletins/2011/ms11-050
securityreason.com / securityalert/8275
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12308