Microsoft · Security update · June 13, 2017

KB4021903: June 2017 security update

KB4021903, released June 13, 2017, fixes 1 CVE across 3 products. One of them is being exploited (CVE-2017-8464); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now1 on CISA KEVUnsupported product
CVEs closed
1
1 rated Critical
Exploited
1
CVE-2017-8464
Exploitation more likely
0
Microsoft's assessment
Highest EPSS
0.9003
99th percentile

Applies to

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Patch now CVE-2017-8464 Windows ShellRemote Code Execution7.5 0.9003 KEVExploited
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