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CVE-2011-1255

67
FAUCET Score

CVE-2011-1255 is a critical memory corruption vulnerability in Microsoft Internet Explorer versions 6 through 8, specifically within its HTML+TIME implementation. This flaw allows remote attackers to execute arbitrary code by manipulating uninitialized or deleted objects in memory, impacting various Windows operating systems. With a CVSS score of 9.3, it presents a high-severity risk due to its network-based attack vector, medium complexity, and complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, an exploit is publicly available on ExploitDB, and it has been associated with the "Dust Storm" attack targeting Japanese critical infrastructure, indicating its historical use in sophisticated campaigns.

Impacted Technologies

VendorProductVersion(s)CPE
6CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
7CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
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
38.59%
Probability of exploitation in next 30 days
EPSS Percentile
98.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-20547 · Aug 16, 2012
This CVE's current EPSS score of 0.3859 is in the 97th percentile among its peer group of 8,914 CVEs.

Social Chatter

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

Media Mentions

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

blogs.technet.com / b/srd/archive/2011/06/14/ms11-050-ie9-is-better.aspx
Broken LinkVendor Advisory
osvdb.org / 72947
Broken Link
docs.microsoft.com / en-us/security-updates/securitybulletins/2011/ms11-050
PatchVendor Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12227
Tool Signature