Microsoft · Security update · August 11, 2026
KB5120238: August 2026 cumulative update for Windows 10 1809
KB5120238, released August 11, 2026, fixes 174 CVEs across 4 products. One of them is being exploited (CVE-2026-68820); 1 on CISA KEV. Patch Radar priority: Patch now.
Patch now1 on CISA KEV
CVEs closed
174
18 rated Critical
Exploited
1
CVE-2026-68820
Exploitation more likely
16
Microsoft's assessment
Highest EPSS
0.0857
95th percentile
Priority of the 174 CVEs
Patch now 1
Urgent 32
High 87
Routine 54
Applies to
| Product | Build after install |
|---|---|
| Windows 10 Version 1809 for 32-bit Systems | 17763.9121 |
| Windows 10 Version 1809 for x64-based Systems | 17763.9121 |
| Windows Server 2019 | 17763.9121 |
| Windows Server 2019 (Server Core installation) | 17763.9121 |
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Patch now | CVE-2026-68820 | Windows Ancillary Function Driver for WinSock | Elevation of Privilege | 7.0 | 0.0857 | KEVExploited |
| Urgent | CVE-2026-59132 | Windows TCP/IP | Denial of Service | 7.5 | 0.0117 | More likely |
| Urgent | CVE-2026-62878 | Windows DNS | Remote Code Execution | 9.8 | 0.0097 | Exploitation Less Likely |
| Urgent | CVE-2026-62893 | Windows Deployment Services | Remote Code Execution | 9.8 | 0.0097 | More likely |
| Urgent | CVE-2026-65791 | Windows iSCSI Target Service | Remote Code Execution | 9.8 | 0.0097 | Exploitation Unlikely |
| Urgent | CVE-2026-62818 | Active Directory Certificate Services (AD CS) | Remote Code Execution | 8.8 | 0.0091 | Exploitation Less Likely |
| Urgent | CVE-2026-62735 | Windows HTTP.sys | Elevation of Privilege | 7.8 | 0.0087 | More likely |
| Urgent | CVE-2026-62822 | Windows GDI+ | Remote Code Execution | 8.8 | 0.0082 | Exploitation Less Likely |
| Urgent | CVE-2026-62819 | Windows Routing and Remote Access Service (RRAS) | Remote Code Execution | 8.1 | 0.0071 | Exploitation Less Likely |
| Urgent | CVE-2026-62889 | Windows Secure Socket Tunneling Protocol (SSTP) | Remote Code Execution | 8.1 | 0.0071 | Exploitation Less Likely |
| Urgent | CVE-2026-65679 | Windows iSCSI Target Service | Remote Code Execution | 8.1 | 0.0071 | Exploitation Less Likely |
| Urgent | CVE-2026-65789 | Windows DNS | Remote Code Execution | 8.1 | 0.0071 | Exploitation Unlikely |
| Urgent | CVE-2026-65796 | Windows iSCSI Target Service | Remote Code Execution | 8.1 | 0.0071 | Exploitation Unlikely |
| Urgent | CVE-2026-71331 | Windows Device Health Attestation (DHA) | Remote Code Execution | 8.1 | 0.0071 | Exploitation Less Likely |
| Urgent | CVE-2026-62820 | Windows DNS | Remote Code Execution | 8.1 | 0.0054 | Exploitation Less Likely |
| Urgent | CVE-2026-66802 | Windows Device Health Attestation (DHA) | Remote Code Execution | 8.1 | 0.0054 | Exploitation Less Likely |
| Urgent | CVE-2026-62816 | Reliable Multicast Transport Driver (RMCAST) | Remote Code Execution | 8.8 | 0.0054 | Exploitation Less Likely |
| Urgent | CVE-2026-62817 | Windows DNS | Remote Code Execution | 8.8 | 0.0054 | Exploitation Less Likely |
| Urgent | CVE-2026-62823 | Windows DHCP Server | Remote Code Execution | 8.8 | 0.0054 | More likely |
| Urgent | CVE-2026-61358 | Windows Accessibility Infrastructure (ATBroker.exe) | Elevation of Privilege | 7.8 | 0.0037 | More likely |
| Urgent | CVE-2026-61930 | Windows Kernel | Elevation of Privilege | 7.8 | 0.0033 | More likely |
| Urgent | CVE-2026-62696 | Windows Program Compatibility Assistant Service | Elevation of Privilege | 7.8 | 0.0033 | More likely |
| Urgent | CVE-2026-62698 | Microsoft Digest Authentication | Elevation of Privilege | 7.8 | 0.0033 | More likely |
| Urgent | CVE-2026-62712 | Windows Win32K | Elevation of Privilege | 7.8 | 0.0033 | More likely |
| Urgent | CVE-2026-62713 | Windows Cloud Files Mini Filter Driver | Elevation of Privilege | 7.8 | 0.0033 | More likely |
Showing 1 to 25 of 174
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