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CVE-2009-0090

39
FAUCET Score

CVE-2009-0090 is a critical vulnerability in Microsoft .NET Framework versions 1.0 SP3, 1.1 SP1, and 2.0 SP1, affecting various Windows operating systems. It stems from improper validation of .NET verifiable code, allowing remote attackers to gain unintended access to stack memory and execute arbitrary code through crafted applications. This vulnerability carries a CVSS score of 9.3, indicating a severe risk with network-based attacks, medium attack complexity, and complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code in Metasploit or ExploitDB, the vulnerability has garnered significant community discussion, with 10 mentions, suggesting awareness and potential interest among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_framework:1.1:sp1:*:*:*:*:*:*
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:*:*:*:*:*:*

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
20.98%
Probability of exploitation in next 30 days
EPSS Percentile
97.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2098 is in the 87th 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/2009/ms09-061
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5716
us-cert.gov / cas/techalerts/TA09-286A.html
US Government Resource