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CVE-2009-3476

27
FAUCET Score

CVE-2009-3476 describes a buffer overflow vulnerability in OpenSAML (versions prior to 1.1.3) and XMLTooling (versions prior to 1.2.2), impacting Internet2 Shibboleth Service Provider software. This flaw allows remote attackers to trigger a denial of service and potentially execute arbitrary code through a specially crafted encoded URL. With a CVSS score of 9.3, this vulnerability is critical, indicating a network-based attack with medium complexity that can lead to complete compromise of confidentiality, integrity, and availability. Despite its high 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
1.3.1CPE matchmatch criteria
cpe:2.3:a:internet2:shibboleth-sp:1.3.1:*:*:*:*:*:*:*
1.3.2CPE matchmatch criteria
cpe:2.3:a:internet2:shibboleth-sp:1.3.2:*:*:*:*:*:*:*
1.3.3CPE matchmatch criteria
cpe:2.3:a:internet2:shibboleth-sp:1.3.3:*:*:*:*:*:*:*
1.3fCPE matchmatch criteria
cpe:2.3:a:internet2:shibboleth-sp:1.3f:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:internet2:opensaml:1.1:*:*:*:*:*:*:*

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
4.10%
Probability of exploitation in next 30 days
EPSS Percentile
89.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0410 is in the 53rd 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

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

secunia.com / advisories/36869
Vendor Advisory
secunia.com / advisories/36870
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/53471
shibboleth.internet2.edu / secadv/secadv_20090826.txt
Vendor Advisory
securityfocus.com / bid/36514