Microsoft · Security update · September 8, 2020

KB4577010: September 2020 security update

KB4577010, released September 8, 2020, fixes 2 CVEs across 9 products. One of them is being exploited (CVE-2020-0878); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now1 on CISA KEVKnown ransomware useUnsupported product
CVEs closed
2
1 rated Critical
Exploited
1
CVE-2020-0878
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0374
89th percentile

Priority of the 2 CVEs

Patch now 1 Urgent 0 High 1 Routine 0

Applies to

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Patch now CVE-2020-0878 Microsoft Browsers Remote Code Execution 4.2 0.0270 KEVRansomwareExploited
High CVE-2020-1012 Internet Explorer Elevation of Privilege 8.8 0.0374 Exploitation Less Likely
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