Microsoft · Security update · September 12, 2023
KB5030217: September 2023 cumulative update for Windows 11 21H2
KB5030217, released September 12, 2023, fixes 18 CVEs across 2 products. One of them is being exploited (CVE-2023-36802); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.
Patch now1 on CISA KEVUnsupported product
CVEs closed
18
1 rated Critical
Exploited
1
CVE-2023-36802
Exploitation more likely
7
Vendor assessment
Highest EPSS
0.3738
98th percentile
Priority of the 18 CVEs
Patch now 1
Urgent 7
High 8
Routine 2
Applies to
| Product | Build after install |
|---|---|
| Windows 11 version 21H2 for ARM64-based Systems | 22000.2416 |
| Windows 11 version 21H2 for x64-based Systems | 22000.2416 |
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Patch now | CVE-2023-36802 | Microsoft Streaming Service | Elevation of Privilege | 7.8 | 0.2791 | KEVExploited |
| Urgent | CVE-2023-38148 | Windows Internet Connection Sharing (ICS) | Remote Code Execution | 8.8 | 0.0770 | More likely |
| Urgent | CVE-2023-38142 | Windows Kernel | Elevation of Privilege | 7.8 | 0.0555 | More likely |
| Urgent | CVE-2023-38144 | Windows Common Log File System Driver | Elevation of Privilege | 7.8 | 0.0345 | More likely |
| Urgent | CVE-2023-38143 | Windows Common Log File System Driver | Elevation of Privilege | 7.8 | 0.0341 | More likely |
| Urgent | CVE-2023-38160 | Windows TCP/IP | Information Disclosure | 5.5 | 0.0094 | More likely |
| Urgent | CVE-2023-36804 | Windows GDI | Elevation of Privilege | 7.8 | 0.0060 | More likely |
| Urgent | CVE-2023-38161 | Windows GDI | Elevation of Privilege | 7.8 | 0.0059 | More likely |
| High | CVE-2023-38146 | Windows Themes | Remote Code Execution | 8.8 | 0.3738 | Exploitation Less Likely |
| High | CVE-2023-38149 | Windows TCP/IP | Denial of Service | 7.5 | 0.0448 | Exploitation Less Likely |
| High | CVE-2023-36805 | Windows Scripting | Security Feature Bypass | 7.0 | 0.0176 | Exploitation Less Likely |
| High | CVE-2023-38139 | Windows Kernel | Elevation of Privilege | 7.8 | 0.0093 | Exploitation Less Likely |
| High | CVE-2023-38147 | Microsoft Windows Codecs Library | Remote Code Execution | 8.8 | 0.0089 | Exploitation Less Likely |
| High | CVE-2023-38141 | Windows Kernel | Elevation of Privilege | 7.8 | 0.0063 | Exploitation Less Likely |
| High | CVE-2023-35355 | Windows Cloud Files Mini Filter Driver | Elevation of Privilege | 7.8 | 0.0059 | Exploitation Less Likely |
| High | CVE-2023-38150 | Windows Kernel | Elevation of Privilege | 7.8 | 0.0056 | Exploitation Less Likely |
| Routine | CVE-2023-38140 | Windows Kernel | Information Disclosure | 5.5 | 0.0106 | Exploitation Less Likely |
| Routine | CVE-2023-36803 | Windows Kernel | Information Disclosure | 5.5 | 0.0099 | Exploitation Less Likely |
Showing 1 to 18 of 18
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