Microsoft · Security update · October 14, 2025

KB5066874: October 2025 security update

KB5066874, released October 14, 2025, fixes 34 CVEs across 4 products. 2 of them are being exploited (CVE-2025-24990); 2 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now2 on CISA KEV1 publicly disclosedUnsupported product
CVEs closed
34
1 rated Critical
Exploited
2
CVE-2025-24990
Exploitation more likely
1
Microsoft's assessment
Highest EPSS
0.0651
93rd percentile

Priority of the 34 CVEs

Patch now 2 Urgent 2 High 21 Routine 9

Applies to

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Patch now CVE-2025-24990 Agere Windows Modem DriverElevation of Privilege7.8 0.0651 KEVExploited
Patch now CVE-2025-59230 Windows Remote Access Connection ManagerElevation of Privilege7.8 0.0272 KEVExploited
Urgent CVE-2016-9535 Microsoft Graphics ComponentRemote Code Execution4.0 0.0473 Exploitation Unlikely
Urgent CVE-2025-24052 Agere Windows Modem DriverElevation of Privilege7.8 0.0254 DisclosedMore likely
High CVE-2025-59295 Internet ExplorerRemote Code Execution8.8 0.0190 Exploitation Less Likely
High CVE-2025-58726 Windows SMB ServerElevation of Privilege7.5 0.0104 Exploitation Less Likely
High CVE-2025-59282 Inbox COM ObjectsRemote Code Execution7.0 0.0061 Exploitation Unlikely
High CVE-2025-58718 Remote Desktop ClientRemote Code Execution8.8 0.0060 Exploitation Less Likely
High CVE-2025-59208 Windows MapUrlToZoneInformation Disclosure7.1 0.0050 Exploitation Less Likely
High CVE-2025-25004 Microsoft PowerShellElevation of Privilege7.3 0.0049 Exploitation Less Likely
High CVE-2025-58735 Inbox COM ObjectsRemote Code Execution7.0 0.0047 Exploitation Unlikely
High CVE-2025-59201 Network Connection Status Indicator (NCSI)Elevation of Privilege7.8 0.0046 Exploitation Less Likely
High CVE-2025-55701 Microsoft WindowsElevation of Privilege7.8 0.0041 Exploitation Less Likely
High CVE-2025-59242 Windows Ancillary Function Driver for WinSockElevation of Privilege7.8 0.0041 Exploitation Less Likely
High CVE-2025-59277 Windows Authentication MethodsElevation of Privilege7.8 0.0039 Exploitation Less Likely
High CVE-2025-58733 Inbox COM ObjectsRemote Code Execution7.0 0.0035 Exploitation Unlikely
High CVE-2025-58736 Inbox COM ObjectsRemote Code Execution7.0 0.0035 Exploitation Unlikely
High CVE-2025-59187 Windows KernelElevation of Privilege7.8 0.0031 Exploitation Less Likely
High CVE-2025-59275 Windows Authentication MethodsElevation of Privilege7.8 0.0028 Exploitation Less Likely
High CVE-2025-59278 Windows Authentication MethodsElevation of Privilege7.8 0.0028 Exploitation Less Likely
High CVE-2025-58714 Windows Ancillary Function Driver for WinSockElevation of Privilege7.8 0.0028 Exploitation Unlikely
High CVE-2025-55335 Windows NTFSElevation of Privilege7.4 0.0027 Exploitation Less Likely
High CVE-2025-59196 Windows SSDP ServiceElevation of Privilege7.0 0.0027 Exploitation Unlikely
High CVE-2025-58725 Windows COMElevation of Privilege7.0 0.0026 Exploitation Less Likely
High CVE-2025-59205 Microsoft Graphics ComponentElevation of Privilege7.0 0.0020 Exploitation Less Likely
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