What’s Vulnerable › Vulnerabilities

CVE-2019-1142

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-09-11 · updated 2026-06-17
• Weakness: CWE-22

Description

An elevation of privilege vulnerability exists when the .NET Framework common language runtime (CLR) allows file creation in arbitrary locations, aka '.NET Framework Elevation of Privilege Vulnerability'.

Affected products

• Microsoft .NET Framework: 3.5, 4.7.2, 4.6, 4.6.1, 4.6.2, 4.7 (+3)
• 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 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 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 RT 8.1 (+1)
• Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2: 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 RT 8.1 (+1)
• 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 8.1 for 32-bit systems: all versions
• Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems: all versions
• Microsoft .NET Framework 4.8 on Windows RT 8.1: all versions
• Microsoft .NET Framework 4.8 on Windows Server 2012: all versions
• Microsoft .NET Framework 4.8 on Windows Server 2012 R2: all versions
• Microsoft .NET Framework 4.8 on Windows Server 2016: all versions
• Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation): all versions

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1142
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1142

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