Microsoft · Security update · May 9, 2017

KB4018271: May 2017 security update

KB4018271, released May 9, 2017, fixes 5 CVEs across 9 products. One of them is being exploited (CVE-2017-0222); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now1 on CISA KEV2 publicly disclosedUnsupported product
CVEs closed
5
None rated Critical
Exploited
1
CVE-2017-0222
Exploitation more likely
2
Microsoft's assessment
Highest EPSS
0.2965
98th percentile

Priority of the 5 CVEs

Patch now 1 Urgent 2 High 0 Routine 2

Applies to

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Patch now CVE-2017-0222 Internet ExplorerRemote Code Execution6.0 0.2965 KEVExploited
Urgent CVE-2017-0238 Microsoft Scripting EngineRemote Code Execution4.2 0.1807 More likely
Urgent CVE-2017-0226 Internet ExplorerRemote Code Execution7.5 0.0982 More likely
Routine CVE-2017-0064 Internet ExplorerSecurity Feature Bypass2.4 0.0520 DisclosedExploitation Less Likely
Routine CVE-2017-0231 Microsoft EdgeSpoofing4.3 0.0367 DisclosedExploitation Less Likely
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