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Medium severity5.9NVD Advisory· Published Oct 10, 2019· Updated Jun 17, 2026

CVE-2019-1166

CVE-2019-1166

Description

A tampering vulnerability exists in Microsoft Windows when a man-in-the-middle attacker is able to successfully bypass the NTLM MIC (Message Integrity Check) protection, aka 'Windows NTLM Tampering Vulnerability'.

Affected products

7
  • Microsoft/Windowsllm-fuzzy2 versions
    (expand)+ 1 more
    • (no CPE)
    • (no CPE)range: 7 for 32-bit Systems Service Pack 1
  • Microsoft/Windows 10 Version 1903 for 32-bit Systemsv5
    Range: unspecified
  • Microsoft/Windows 10 Version 1903 for ARM64-based Systemsv5
    Range: unspecified
  • Microsoft/Windows 10 Version 1903 for x64-based Systemsv5
    Range: unspecified
  • Microsoft/Windows Server 2003cpe-rescue
    Range: 2008 R2 for x64-based Systems Service Pack 1 (Core installation)
  • Microsoft/Windows Server, version 1903 (Server Core installation)v5
    Range: unspecified

Patches

Vulnerability mechanics

References

1

News mentions

0

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