Microsoft · Security update · May 9, 2023
KB5026426: May 2023 security update
KB5026426, released May 9, 2023, fixes 13 CVEs across 2 products. One of them is being exploited (CVE-2023-29336); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.
Patch now1 on CISA KEV1 publicly disclosedUnsupported product
CVEs closed
13
4 rated Critical
Exploited
1
CVE-2023-29336
Exploitation more likely
2
Vendor assessment
Highest EPSS
0.8389
99th percentile
Priority of the 13 CVEs
Patch now 1
Urgent 5
High 4
Routine 3
Applies to
| Product |
|---|
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Patch now | CVE-2023-29336 | Windows Win32K | Elevation of Privilege | 7.8 | 0.4119 | KEVExploited |
| Urgent | CVE-2023-29325 | Windows OLE | Remote Code Execution | 8.1 | 0.8389 | DisclosedMore 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-2023-24942 | Windows Remote Procedure Call Runtime | Denial of Service | 7.5 | 0.0190 | Exploitation Less Likely |
| High | CVE-2023-24904 | Windows Installer | Elevation of Privilege | 7.1 | 0.0062 | Exploitation Less Likely |
| High | CVE-2023-24946 | Windows Backup Engine | Elevation of Privilege | 7.8 | 0.0044 | Exploitation Less Likely |
| Routine | CVE-2023-24900 | Windows NTLM | Information Disclosure | 5.9 | 0.0123 | 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 |
Showing 1 to 13 of 13
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