How severe is CVE-2011-1411?

CVE-2011-1411 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2011-1411 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1411?

CVE-2011-1411 primarily affects Shibboleth Opensaml. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1411?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-1411 published?

CVE-2011-1411 was published on 2011-09-02 and last updated on 2026-06-16.

CVE-2011-1411

CVE-2011-1411 is a medium-severity vulnerability in Shibboleth Opensaml with a CVSS 2.0 base score of 5.8. 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-287.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Shibboleth Opensaml
Published: 2011-09-02
Last modified: 2026-06-16

Description

Shibboleth OpenSAML library 2.4.x before 2.4.3 and 2.5.x before 2.5.1, and IdP before 2.3.2, allows remote attackers to forge messages and bypass authentication via an "XML Signature wrapping attack."

Frequently asked questions

What is CVE-2011-1411?: Shibboleth OpenSAML library 2.4.x before 2.4.3 and 2.5.x before 2.5.1, and IdP before 2.3.2, allows remote attackers to forge messages and bypass authentication via an "XML Signature wrapping attack."
How severe is CVE-2011-1411?: CVE-2011-1411 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2011-1411 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1411?: CVE-2011-1411 primarily affects Shibboleth Opensaml. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1411?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1411 published?: CVE-2011-1411 was published on 2011-09-02 and last updated on 2026-06-16.

References

Affected products (15)

cpe:2.3:a:shibboleth:opensaml:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:opensaml:2.4.1:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:opensaml:2.4.2:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:opensaml:2.5.0:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-identity-provider:*:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-identity-provider:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-identity-provider:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-identity-provider:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-identity-provider:2.1.2:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-identity-provider:2.1.3:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-identity-provider:2.1.4:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-identity-provider:2.1.5:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-identity-provider:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-identity-provider:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:shibboleth:shibboleth-identity-provider:2.3.0:*:*:*:*:*:*:*

More vulnerabilities in Shibboleth Opensaml

CVE-2017-16853 — High (CVSS 8.1): The DynamicMetadataProvider class in saml/saml2/metadata/impl/DynamicMetadataProvider.cpp in OpenSAML-C in OpenSAML…
CVE-2013-6440 — Medium (CVSS 5.0): The (1) BasicParserPool, (2) StaticBasicParserPool, (3) XML Decrypter, and (4) SAML Decrypter in Shibboleth…

All CVEs affecting Shibboleth Opensaml →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-20317 — Critical (CVSS 10.0): As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering…
CVE-2026-19977 — Critical (CVSS 10.0): A vulnerability was detected in EFM ipTIME A3004T 14.19.0. The affected element is the function…
CVE-2026-59500 — Critical (CVSS 10.0): CWE-287: Improper Authentication
CVE-2024-27253 — Critical (CVSS 10.0): IBM DOORS Next 7.0.3 through 7.0.3 Interim Fix 018 could allow an authenticated user to bypass security logic to…
CVE-2026-56162 — Critical (CVSS 10.0): Improper authentication in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-62825 — Critical (CVSS 10.0): Improper authentication in Azure Key Vault allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-287 (Improper Authentication) vulnerabilities →