CVE-2020-1284

Description

A denial of service vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Denial of Service Vulnerability'.

6.5

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 14.60% Top 10%

Vendor Advisory microsoft.com

Affected: Microsoft Windows 10 Version 2004 for x64-based Systems

Affected: Microsoft Windows Server, version 2004 (Server Core installation)

Affected: Microsoft Windows 10 Version 2004 for ARM64-based Systems

Affected: Microsoft Windows 10 Version 2004 for 32-bit Systems

References

Link	Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1284	patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-1284?: CVE-2020-1284 has been scored as a medium severity vulnerability.
How to fix CVE-2020-1284?: To fix CVE-2020-1284, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-1284 being actively exploited in the wild?: It is possible that CVE-2020-1284 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~15% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-1284?: CVE-2020-1284 affects Microsoft Windows 10 Version 2004 for x64-based Systems, Microsoft Windows Server, version 2004 (Server Core installation), Microsoft Windows 10 Version 2004 for ARM64-based Systems, Microsoft Windows 10 Version 2004 for 32-bit Systems.

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