Microsoft · Security update · October 8, 2019

KB4519990: October 2019 security update

KB4519990, released October 8, 2019, fixes 21 CVEs across 4 products. One of them is being exploited (CVE-2019-1315); 1 on CISA KEV. Patch Radar priority: Patch now.

Patch now1 on CISA KEVKnown ransomware use
CVEs closed
21
2 rated Critical
Exploited
1
CVE-2019-1315
Exploitation more likely
2
Vendor assessment
Highest EPSS
0.7593
99th percentile

Priority of the 21 CVEs

Patch now 1 Urgent 3 High 10 Routine 7

Applies to

Product
Windows 8.1 for 32-bit systems
Windows 8.1 for x64-based systems
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Patch now CVE-2019-1315 Microsoft Windows Elevation of Privilege 7.8 0.0348 KEVRansomwareExploited
Urgent CVE-2019-1333 Windows RDP Remote Code Execution 7.5 0.1598 More likely
Urgent CVE-2019-1060 Microsoft Scripting Engine Remote Code Execution 6.4 0.1379 Exploitation Less Likely
Urgent CVE-2019-1341 Microsoft Windows Elevation of Privilege 7.8 0.0109 More likely
High CVE-2019-1358 Microsoft JET Database Engine Remote Code Execution 7.8 0.7593 Exploitation Less Likely
High CVE-2019-1311 Microsoft Windows Remote Code Execution 7.8 0.3623 Exploitation Less Likely
High CVE-2019-1359 Microsoft JET Database Engine Remote Code Execution 7.8 0.1927 Exploitation Less Likely
High CVE-2019-1326 Windows RDP Denial of Service 7.5 0.0646 Exploitation Less Likely
High CVE-2019-1365 Windows IIS Elevation of Privilege 7.5 0.0435 Exploitation Less Likely
High CVE-2019-1318 Microsoft Windows Spoofing 7.7 0.0352 Exploitation Less Likely
High CVE-2019-1339 Microsoft Windows Elevation of Privilege 7.8 0.0132 None reported
High CVE-2019-1342 Microsoft Windows Elevation of Privilege 7.0 0.0118 Exploitation Less Likely
High CVE-2019-1319 Microsoft Windows Elevation of Privilege 7.0 0.0097 Exploitation Less Likely
High CVE-2019-1454 Microsoft Windows Elevation of Privilege n/a 0.0064 Exploitation Less Likely
Routine CVE-2019-1166 Windows NTLM Tampering 5.9 0.6811 Exploitation Less Likely
Routine CVE-2019-1347 Microsoft Windows Denial of Service 5.7 0.1494 Exploitation Less Likely
Routine CVE-2019-1343 Windows Kernel Denial of Service 6.5 0.1093 Exploitation Less Likely
Routine CVE-2019-1346 Microsoft Windows Denial of Service 5.7 0.1093 Exploitation Less Likely
Routine CVE-2019-1344 Microsoft Windows Information Disclosure 5.5 0.0307 Exploitation Less Likely
Routine CVE-2019-1334 Windows Kernel Information Disclosure 4.7 0.0225 Exploitation Less Likely
Routine CVE-2019-1325 Microsoft Windows Denial of Service 5.5 0.0144 Exploitation Unlikely
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