Microsoft · Security update · September 12, 2023

KB5030524: September 2023 security update

KB5030524, released September 12, 2023, fixes 11 CVEs across 3 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent
CVEs closed
11
None rated Critical
Exploited
0
None reported
Exploitation more likely
6
Microsoft's assessment
Highest EPSS
0.7617
99th percentile

Priority of the 11 CVEs

Patch now 0 Urgent 6 High 5 Routine 0

Applies to

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Urgent CVE-2023-36745 Microsoft Exchange ServerRemote Code Execution8.0 0.7617 More likely
Urgent CVE-2023-36744 Microsoft Exchange ServerRemote Code Execution8.0 0.5711 More likely
Urgent CVE-2023-36777 Microsoft Exchange ServerInformation Disclosure5.7 0.5201 More likely
Urgent CVE-2023-36756 Microsoft Exchange ServerRemote Code Execution8.0 0.4919 More likely
Urgent CVE-2023-35388 Microsoft Exchange ServerRemote Code Execution8.0 0.0685 More likely
Urgent CVE-2023-38182 Microsoft Exchange ServerRemote Code Execution8.0 0.0592 More likely
High CVE-2023-36757 Microsoft Exchange ServerSpoofing8.0 0.3692 Exploitation Less Likely
High CVE-2023-38181 Microsoft Exchange ServerSpoofing8.8 0.1080 Exploitation Less Likely
High CVE-2023-38185 Microsoft Exchange ServerRemote Code Execution8.8 0.0268 Exploitation Less Likely
High CVE-2023-35368 Microsoft Exchange ServerRemote Code Execution8.8 0.0249 Exploitation Less Likely
High CVE-2023-21709 Microsoft Exchange ServerElevation of Privilege9.8 0.0198 Exploitation Less Likely
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