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CVE-2009-2497

33
FAUCET Score

CVE-2009-2497 describes a critical vulnerability in the Common Language Runtime (CLR) of Microsoft .NET Framework versions 2.0 through 3.5 SP1 and Silverlight 2. This flaw, related to improper interface handling, allows remote attackers to execute arbitrary code through specially crafted applications such as XBAP, Silverlight, ASP.NET, or .NET Framework applications. With a CVSS score of 9.3 (Critical), the vulnerability has a network attack vector, medium attack complexity, and high impacts on confidentiality, integrity, and availability. Despite its high severity and EPSS score, 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
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_framework:2.0:sp1:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*

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
23.25%
Probability of exploitation in next 30 days
EPSS Percentile
97.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.2325 is in the 89th percentile among its peer group of 8,920 CVEs.

Social Chatter

No social media mentions found for this CVE.

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/2009/ms09-061
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6510
us-cert.gov / cas/techalerts/TA09-286A.html
US Government Resource