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CVE-2011-0664

32
FAUCET Score

CVE-2011-0664 is a critical vulnerability in Microsoft .NET Framework versions 2.0 through 4.0 and Silverlight 4, allowing remote code execution due to improper argument validation in unspecified networking API functions. This flaw can be exploited via crafted XAML browser, ASP.NET, .NET Framework, or Silverlight applications. With a CVSS score of 9.3, it presents a high risk, enabling complete compromise of confidentiality, integrity, and availability with low attack complexity and no authentication required. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:*
3.5.1CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*
3.5CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_framework:3.5:sp1:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_framework:2.0:sp1:*:*:*:*:*:*

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
16.01%
Probability of exploitation in next 30 days
EPSS Percentile
96.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.1601 is in the 82nd percentile among its peer group of 8,915 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

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/ms11-039
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12105