What’s Vulnerable › Vulnerabilities

CVE-2019-1083

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.8% 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-19

Description

A denial of service vulnerability exists when Microsoft Common Object Runtime Library improperly handles web requests, aka '.NET Denial of Service Vulnerability'.

Affected products

• Microsoft .NET Framework: 2.0-sp2, 3.0-sp2, 3.5, 4.7.2, 4.8, 3.5.1 (+6)
• 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
• Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2: 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) (+5)
• Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems: all versions
• Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems: all versions
• Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for 32-bit Systems: all versions
• Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for x64-based Systems: all versions
• Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems: all versions
• Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems: all versions
• Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems: all versions
• Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems: all versions
• Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1: all versions
• Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1: all versions
• Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems: all versions
• Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems: all versions

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1083
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1083

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