Microsoft · Security update · May 9, 2023

KB5026408: May 2023 security update

KB5026408, released May 9, 2023, fixes 12 CVEs across 4 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
12
4 rated Critical
Exploited
1
CVE-2023-29336
Exploitation more likely
2
Vendor assessment
Highest EPSS
0.8389
99th percentile

Priority of the 12 CVEs

Patch now 1 Urgent 5 High 3 Routine 3

Applies to

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
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
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 12 of 12 1