# KB5066873: October 2025 security update KB5066873, released October 14, 2025, fixes 50 CVEs across 2 products. 3 of them are being exploited (CVE-2025-24990); 3 on CISA KEV. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/fix/microsoft/kb5066873 - Platform: Microsoft - Released: Oct 14, 2025 - Priority: Patch now (Closes CVE-2025-24990, exploited (CISA KEV)) - CVEs: 50, exploited: 3, on CISA KEV: 3 - Vendor advisory: https://support.microsoft.com/help/5066873 ## Applies to | Product | Release | Fixed in | |---|---|---| | [Windows Server 2012 R2](https://patchblox.com/security/data/product/microsoft/windows-server-2012-r2.md) | | | | [Windows Server 2012 R2 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2012-r2-server-core-installation.md) | | | ## CVEs this fix closes | CVE | Priority | Component | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2025-24990](https://patchblox.com/security/data/cve/CVE-2025-24990.md) | Patch now | Agere Windows Modem Driver | 7.8 | 0.0651 | CISA KEV | | [CVE-2025-47827](https://patchblox.com/security/data/cve/CVE-2025-47827.md) | Patch now | Windows Secure Boot | 4.6 | 0.0515 | CISA KEV | | [CVE-2025-59230](https://patchblox.com/security/data/cve/CVE-2025-59230.md) | Patch now | Windows Remote Access Connection Manager | 7.8 | 0.0272 | CISA KEV | | [CVE-2016-9535](https://patchblox.com/security/data/cve/CVE-2016-9535.md) | Urgent | Microsoft Graphics Component | 4.0 | 0.0473 | | | [CVE-2025-55692](https://patchblox.com/security/data/cve/CVE-2025-55692.md) | Urgent | Windows Error Reporting | 7.8 | 0.0363 | More likely | | [CVE-2025-24052](https://patchblox.com/security/data/cve/CVE-2025-24052.md) | Urgent | Agere Windows Modem Driver | 7.8 | 0.0254 | Disclosed | | [CVE-2025-59295](https://patchblox.com/security/data/cve/CVE-2025-59295.md) | High | Internet Explorer | 8.8 | 0.0190 | | | [CVE-2025-58726](https://patchblox.com/security/data/cve/CVE-2025-58726.md) | High | Windows SMB Server | 7.5 | 0.0104 | | | [CVE-2025-59282](https://patchblox.com/security/data/cve/CVE-2025-59282.md) | High | Inbox COM Objects | 7.0 | 0.0061 | | | [CVE-2025-58718](https://patchblox.com/security/data/cve/CVE-2025-58718.md) | High | Remote Desktop Client | 8.8 | 0.0060 | | | [CVE-2025-59208](https://patchblox.com/security/data/cve/CVE-2025-59208.md) | High | Windows MapUrlToZone | 7.1 | 0.0050 | | | [CVE-2025-25004](https://patchblox.com/security/data/cve/CVE-2025-25004.md) | High | Microsoft PowerShell | 7.3 | 0.0049 | | | [CVE-2025-58732](https://patchblox.com/security/data/cve/CVE-2025-58732.md) | High | Inbox COM Objects | 7.0 | 0.0047 | | | [CVE-2025-58735](https://patchblox.com/security/data/cve/CVE-2025-58735.md) | High | Inbox COM Objects | 7.0 | 0.0047 | | | [CVE-2025-59201](https://patchblox.com/security/data/cve/CVE-2025-59201.md) | High | Network Connection Status Indicator (NCSI) | 7.8 | 0.0046 | | | [CVE-2025-55701](https://patchblox.com/security/data/cve/CVE-2025-55701.md) | High | Microsoft Windows | 7.8 | 0.0041 | | | [CVE-2025-59242](https://patchblox.com/security/data/cve/CVE-2025-59242.md) | High | Windows Ancillary Function Driver for WinSock | 7.8 | 0.0041 | | | [CVE-2025-59277](https://patchblox.com/security/data/cve/CVE-2025-59277.md) | High | Windows Authentication Methods | 7.8 | 0.0039 | | | [CVE-2025-58737](https://patchblox.com/security/data/cve/CVE-2025-58737.md) | High | Windows Remote Desktop | 7.0 | 0.0035 | | | [CVE-2025-59202](https://patchblox.com/security/data/cve/CVE-2025-59202.md) | High | Windows Remote Desktop Services | 7.0 | 0.0035 | | | [CVE-2025-58730](https://patchblox.com/security/data/cve/CVE-2025-58730.md) | High | Inbox COM Objects | 7.0 | 0.0035 | | | [CVE-2025-58733](https://patchblox.com/security/data/cve/CVE-2025-58733.md) | High | Inbox COM Objects | 7.0 | 0.0035 | | | [CVE-2025-58736](https://patchblox.com/security/data/cve/CVE-2025-58736.md) | High | Inbox COM Objects | 7.0 | 0.0035 | | | [CVE-2025-59187](https://patchblox.com/security/data/cve/CVE-2025-59187.md) | High | Windows Kernel | 7.8 | 0.0031 | | | [CVE-2025-55678](https://patchblox.com/security/data/cve/CVE-2025-55678.md) | High | Windows DirectX | 7.0 | 0.0030 | | | [CVE-2025-59275](https://patchblox.com/security/data/cve/CVE-2025-59275.md) | High | Windows Authentication Methods | 7.8 | 0.0028 | | | [CVE-2025-59278](https://patchblox.com/security/data/cve/CVE-2025-59278.md) | High | Windows Authentication Methods | 7.8 | 0.0028 | | | [CVE-2025-58714](https://patchblox.com/security/data/cve/CVE-2025-58714.md) | High | Windows Ancillary Function Driver for WinSock | 7.8 | 0.0028 | | | [CVE-2025-55335](https://patchblox.com/security/data/cve/CVE-2025-55335.md) | High | Windows NTFS | 7.4 | 0.0027 | | | [CVE-2025-55687](https://patchblox.com/security/data/cve/CVE-2025-55687.md) | High | Windows Resilient File System (ReFS) | 7.4 | 0.0027 | | | [CVE-2025-59196](https://patchblox.com/security/data/cve/CVE-2025-59196.md) | High | Windows SSDP Service | 7.0 | 0.0027 | | | [CVE-2025-58725](https://patchblox.com/security/data/cve/CVE-2025-58725.md) | High | Windows COM | 7.0 | 0.0026 | | | [CVE-2025-59205](https://patchblox.com/security/data/cve/CVE-2025-59205.md) | High | Microsoft Graphics Component | 7.0 | 0.0020 | | | [CVE-2025-59214](https://patchblox.com/security/data/cve/CVE-2025-59214.md) | Routine | Windows File Explorer | 6.5 | 0.0186 | | | [CVE-2025-59259](https://patchblox.com/security/data/cve/CVE-2025-59259.md) | Routine | Windows Local Session Manager (LSM) | 6.5 | 0.0154 | | | [CVE-2025-59185](https://patchblox.com/security/data/cve/CVE-2025-59185.md) | Routine | Windows Core Shell | 6.5 | 0.0114 | | | [CVE-2025-58729](https://patchblox.com/security/data/cve/CVE-2025-58729.md) | Routine | Windows Local Session Manager (LSM) | 6.5 | 0.0108 | | | [CVE-2025-55700](https://patchblox.com/security/data/cve/CVE-2025-55700.md) | Routine | Windows Routing and Remote Access Service (RRAS) | 6.5 | 0.0097 | | | [CVE-2025-58717](https://patchblox.com/security/data/cve/CVE-2025-58717.md) | Routine | Windows Routing and Remote Access Service (RRAS) | 6.5 | 0.0097 | | | [CVE-2025-58739](https://patchblox.com/security/data/cve/CVE-2025-58739.md) | Routine | Windows File Explorer | 6.5 | 0.0082 | | | [CVE-2025-59244](https://patchblox.com/security/data/cve/CVE-2025-59244.md) | Routine | Windows Core Shell | 6.5 | 0.0082 | | | [CVE-2025-59211](https://patchblox.com/security/data/cve/CVE-2025-59211.md) | Routine | Windows Push Notification Core | 5.5 | 0.0062 | | | [CVE-2025-59258](https://patchblox.com/security/data/cve/CVE-2025-59258.md) | Routine | Active Directory Federation Services | 6.2 | 0.0060 | | | [CVE-2025-59190](https://patchblox.com/security/data/cve/CVE-2025-59190.md) | Routine | Microsoft Windows Search Component | 5.5 | 0.0050 | | | [CVE-2025-59198](https://patchblox.com/security/data/cve/CVE-2025-59198.md) | Routine | Microsoft Windows Search Component | 5.0 | 0.0049 | | | [CVE-2025-59209](https://patchblox.com/security/data/cve/CVE-2025-59209.md) | Routine | Windows Push Notification Core | 5.5 | 0.0048 | | | [CVE-2025-59280](https://patchblox.com/security/data/cve/CVE-2025-59280.md) | Routine | Windows SMB Client | 3.1 | 0.0045 | | | [CVE-2025-59188](https://patchblox.com/security/data/cve/CVE-2025-59188.md) | Routine | Windows Failover Cluster | 5.5 | 0.0044 | | | [CVE-2025-55695](https://patchblox.com/security/data/cve/CVE-2025-55695.md) | Routine | Windows WLAN Auto Config Service | 5.5 | 0.0042 | | | [CVE-2025-59253](https://patchblox.com/security/data/cve/CVE-2025-59253.md) | Routine | Microsoft Windows Search Component | 5.5 | 0.0035 | | --- Data as of 2026-11-07T18:46:35Z UTC. 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