CVE-2020-1206

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Information Disclosure Vulnerability'.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-908

Affected software

Vendor	Product	Versions
Microsoft	Windows 10 Version 1909 for 32-bit Systems	unspecified
Microsoft	Windows 10 Version 1909 for x64-based Systems	unspecified
Microsoft	Windows 10 Version 1909 for ARM64-based Systems	unspecified
Microsoft	Windows Server, version 1909 (Server Core installation)	unspecified
Microsoft	Windows 10 Version 1903 for 32-bit Systems	unspecified
Microsoft	Windows 10 Version 1903 for x64-based Systems	unspecified
Microsoft	Windows 10 Version 1903 for ARM64-based Systems	unspecified
Microsoft	Windows Server, version 1903 (Server Core installation)	unspecified
Microsoft	Windows 10 Version 2004 for ARM64-based Systems	unspecified
Microsoft	Windows 10 Version 2004 for x64-based Systems	unspecified
Microsoft	Windows 10 Version 2004 for 32-bit Systems	unspecified
Microsoft	Windows Server, version 2004 (Server Core installation)	unspecified

References

http://packetstormsecurity.com/files/158053/SMBleed-Uninitialized-Kernel-Memory-Read-Proof-Of-Concept.htmlTechnical Description
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1206Patch, Vendor Advisory
http://packetstormsecurity.com/files/158053/SMBleed-Uninitialized-Kernel-Memory-Read-Proof-Of-Concept.htmlTechnical Description
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1206Patch, Vendor Advisory

Timeline

Published: Jun 9, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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