Microsoft · Security update · January 12, 2021

KB4583456: January 2021 security update

KB4583456, released January 12, 2021, fixes 1 CVE in Microsoft SQL Server 2017 for x64-based Systems (GDR). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.0651

93rd percentile

Applies to

Product
Microsoft SQL Server 2017 for x64-based Systems (GDR)

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
High	CVE-2021-1636	SQL Server	Elevation of Privilege	8.8	0.0651	Exploitation Less Likely

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Vendor advisory

https://support.microsoft.com/help/4583456

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