How severe is CVE-2009-3474?

CVE-2009-3474 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2009-3474 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3474?

CVE-2009-3474 primarily affects Internet2 Opensaml. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3474?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2009-3474 published?

CVE-2009-3474 was published on 2009-09-29 and last updated on 2026-06-16.

CVE-2009-3474

CVE-2009-3474 is a high-severity vulnerability in Internet2 Opensaml with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Internet2 Opensaml
Published: 2009-09-29
Last modified: 2026-06-16

Description

OpenSAML 2.x before 2.2.1 and XMLTooling 1.x before 1.2.1, as used by Internet2 Shibboleth Service Provider 2.x before 2.2.1, do not follow the KeyDescriptor element's Use attribute, which allows remote attackers to use a certificate for both signing and encryption when it is designated for just one purpose, potentially weakening the intended security application of the certificate.

Frequently asked questions

What is CVE-2009-3474?: OpenSAML 2.x before 2.2.1 and XMLTooling 1.x before 1.2.1, as used by Internet2 Shibboleth Service Provider 2.x before 2.2.1, do not follow the KeyDescriptor element's Use attribute, which allows remote attackers to use a certificate for both signing and encryption when it is designated for just one purpose, potentially weakening the intended security application of the certificate.
How severe is CVE-2009-3474?: CVE-2009-3474 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2009-3474 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3474?: CVE-2009-3474 primarily affects Internet2 Opensaml. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3474?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2009-3474 published?: CVE-2009-3474 was published on 2009-09-29 and last updated on 2026-06-16.

References

Affected products (14)

cpe:2.3:a:internet2:opensaml:2.0:*:*:*:*:*:*:*
cpe:2.3:a:internet2:opensaml:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:internet2:opensaml:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:internet2:xmltooling:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:internet2:xmltooling:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:internet2:xmltooling:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:internet2:xmltooling:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:internet2:shibboleth-sp:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:internet2:shibboleth-sp:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:internet2:shibboleth-sp:1.3b:*:*:*:*:*:*:*
cpe:2.3:a:internet2:shibboleth-sp:1.3f:*:*:*:*:*:*:*
cpe:2.3:a:internet2:shibboleth-sp:2.0:*:*:*:*:*:*:*
cpe:2.3:a:internet2:shibboleth-sp:2.1:*:*:*:*:*:*:*
cpe:2.3:a:internet2:shibboleth-sp:2.2:*:*:*:*:*:*:*

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