What’s Vulnerable › Vulnerabilities

CVE-2019-1006

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-07-15 · updated 2026-06-17
• Weakness: CWE-295

Description

An authentication bypass vulnerability exists in Windows Communication Foundation (WCF) and Windows Identity Foundation (WIF), allowing signing of SAML tokens with arbitrary symmetric keys, aka 'WCF/WIF SAML Token Authentication Bypass Vulnerability'.

Affected products

• Microsoft .NET Framework: 2.0-sp2, 3.0-sp2, 3.5, 4.7.2, 4.8, 3.5.1 (+6)
• Microsoft Identitymodel: 7.0.0
• Microsoft SharePoint Server: 2013-sp1, 2016
• Microsoft SharePoint Foundation 2013 Service Pack 1: 2010-sp2, 2013-sp1
• Microsoft SharePoint Server: 2019
• Microsoft Windows 10 Version 1607: 1607, 1703, 1709, 1803, 1809, 1903
• Microsoft Windows 7: all versions
• Microsoft Windows 8.1: all versions
• Microsoft Windows RT 8.1: all versions
• Microsoft Windows Server 2008: r2-sp1
• Microsoft Windows Server 2012: r2
• Microsoft Windows Server 2016: 1803, 1903
• Microsoft Windows Server 2019: all versions
• Microsoft.IdentityModel: 7.0.0
• Microsoft .NET Framework 2.0: Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2, Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2, Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
• Microsoft .NET Framework 3.0: Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2, Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2, Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
• Microsoft .NET Framework 3.5: Windows Server 2012, Windows Server 2012 (Server Core installation), Windows 8.1 for 32-bit systems, Windows 8.1 for x64-based systems, Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation) (+13)
• Microsoft .NET Framework 3.5.1: Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems: all versions
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems: all versions
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019: all versions
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems: all versions
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems: all versions
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems: all versions
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems: all versions
• Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019: all versions
• Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation): 1903
• Microsoft .NET Framework 4.5.2: Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Windows Server 2008 R2 for x64-based Systems Service Pack 1, Windows Server 2012, Windows Server 2012 (Server Core installation) (+7)
• Microsoft .NET Framework 4.6: Windows Server 2008 for 32-bit Systems Service Pack 2, Windows Server 2008 for x64-based Systems Service Pack 2
• Microsoft .NET Framework 4.6/4.6.1/4.6.2: Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1006
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1006

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