Microsoft · Security update · May 9, 2023
KB5026368: May 2023 cumulative update for Windows 11 21H2
KB5026368, released May 9, 2023, fixes 21 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.
Urgent1 publicly disclosedUnsupported product
CVEs closed
21
4 rated Critical
Exploited
0
None reported
Exploitation more likely
4
Microsoft's assessment
Highest EPSS
0.8389
99th percentile
Priority of the 21 CVEs
Patch now 0
Urgent 7
High 10
Routine 4
Applies to
| Product | Build after install |
|---|---|
| Windows 11 version 21H2 for ARM64-based Systems | 22000.1936 |
| Windows 11 version 21H2 for x64-based Systems | 22000.1936 |
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Urgent | CVE-2023-29325 | Windows OLE | Remote Code Execution | 8.1 | 0.8389 | DisclosedMore likely |
| Urgent | CVE-2023-24949 | Windows Kernel | Elevation of Privilege | 7.8 | 0.2462 | More likely |
| Urgent | CVE-2023-24902 | Windows Win32K | Elevation of Privilege | 7.8 | 0.0509 | More likely |
| Urgent | CVE-2023-24943 | Windows PGM | Remote Code Execution | 9.8 | 0.0468 | Exploitation Less Likely |
| Urgent | CVE-2023-29324 | Windows MSHTML Platform | Security Feature Bypass | 6.5 | 0.0284 | More likely |
| Urgent | CVE-2023-28283 | Windows LDAP - Lightweight Directory Access Protocol | Remote Code Execution | 8.1 | 0.0097 | Exploitation Less Likely |
| Urgent | CVE-2023-24903 | Windows Secure Socket Tunneling Protocol (SSTP) | Remote Code Execution | 8.1 | 0.0092 | Exploitation Less Likely |
| High | CVE-2023-24940 | Windows PGM | Denial of Service | 7.5 | 0.0517 | Exploitation Less Likely |
| High | CVE-2023-24939 | Windows NFS Portmapper | Denial of Service | 7.5 | 0.0466 | Exploitation Less Likely |
| High | CVE-2022-29900 | AMD CPU Branch | Information Disclosure | 7.8 | 0.0394 | Exploitation Less Likely |
| High | CVE-2023-24942 | Windows Remote Procedure Call Runtime | Denial of Service | 7.5 | 0.0190 | Exploitation Less Likely |
| High | CVE-2023-24901 | Windows NFS Portmapper | Information Disclosure | 7.5 | 0.0159 | Exploitation Less Likely |
| High | CVE-2023-24948 | Microsoft Bluetooth Driver | Elevation of Privilege | 7.4 | 0.0095 | Exploitation Less Likely |
| High | CVE-2022-26928 | Windows Photo Import API | Elevation of Privilege | 7.0 | 0.0080 | Exploitation Less Likely |
| High | CVE-2023-24905 | Remote Desktop Client | Remote Code Execution | 7.8 | 0.0067 | Exploitation Less Likely |
| High | CVE-2023-24946 | Windows Backup Engine | Elevation of Privilege | 7.8 | 0.0044 | Exploitation Less Likely |
| High | CVE-2023-24899 | Microsoft Graphics Component | Elevation of Privilege | 7.0 | 0.0034 | Exploitation Less Likely |
| Routine | CVE-2023-24900 | Windows NTLM | Information Disclosure | 5.9 | 0.0123 | Exploitation Less Likely |
| Routine | CVE-2023-24944 | Microsoft Bluetooth Driver | Information Disclosure | 6.5 | 0.0069 | Exploitation Less Likely |
| Routine | CVE-2023-24945 | Windows iSCSI Target Service | Information Disclosure | 5.5 | 0.0056 | Exploitation Less Likely |
| Routine | CVE-2023-28251 | Windows Secure Boot | Security Feature Bypass | 5.5 | 0.0045 | Exploitation Less Likely |
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