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Microsoft Patch Tuesday, October 2025

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Microsoft's October 2025 security release, published October 14, 2025: 65 updates fixing 153 CVEs, ranked by confirmed exploitation, ransomware use, and severity. Provided by Senserva.

Still active now. 1 CVE from this release is on the Senserva hot list today (as of 2026-08-30), still ranked among the most dangerous vulnerabilities right now by confirmed exploitation, ransomware use, EPSS, and severity. See the current hot list.
65
Updates (KBs)
153
CVEs fixed
4
On the CISA KEV list
17
Critical updates

Actively exploited CVEs (CISA KEV)

CVE-2025-59287Windows Server Update Service (WSUS) Remote Code Execution VulnerabilityCVSS 9.8Exploited Hot now
CVE-2025-24990Windows Agere Modem Driver Elevation of Privilege VulnerabilityCVSS 7.8Exploited
CVE-2025-59230Windows Remote Access Connection Manager Elevation of Privilege VulnerabilityCVSS 7.8Exploited
CVE-2025-47827MITRE CVE-2025-47827: Secure Boot bypass in IGEL OS before 11CVSS 4.6Exploited

Other high-risk CVEs (CVSS 8.8+)

CVE-2025-55315ASP.NET Security Feature Bypass VulnerabilityCVSS 9.9
CVE-2025-59295Windows URL Parsing Remote Code Execution VulnerabilityCVSS 8.8
CVE-2025-58718Remote Desktop Client Remote Code Execution VulnerabilityCVSS 8.8
CVE-2025-54106Windows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityCVSS 8.8
CVE-2025-54110Windows Kernel Elevation of Privilege VulnerabilityCVSS 8.8
CVE-2025-54918Windows NTLM Elevation of Privilege VulnerabilityCVSS 8.8
CVE-2025-54113Windows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityCVSS 8.8
CVE-2025-55234Windows SMB Elevation of Privilege VulnerabilityCVSS 8.8
CVE-2025-21293Active Directory Domain Services Elevation of Privilege VulnerabilityCVSS 8.8
CVE-2025-59228Microsoft SharePoint Remote Code Execution VulnerabilityCVSS 8.8
CVE-2025-59237Microsoft SharePoint Remote Code Execution VulnerabilityCVSS 8.8
CVE-2025-59249Microsoft Exchange Server Elevation of Privilege VulnerabilityCVSS 8.8

Products fixed this month

Windows Server 2019 (16)Windows Server 2022 (16).NET 8.0 installed on Linux (15).NET 9.0 installed on Linux (15).NET 8.0 installed on Mac OS (13)Microsoft SharePoint Enterprise Server 2016 (10)Microsoft SharePoint Server 2019 (10)Windows Server 2019 (Server Core installation) (9)Windows 11 Version 25H2 for x64-based Systems (7)Windows 10 Version 1809 for x64-based Systems (7)

Every update in this release

All 57 update articles, worst first: anything on the CISA KEV list, then by highest CVSS. Each row links our page for the update, Microsoft's support article, and the Update Catalog for a standalone download.

UpdateSeverityMax CVSSCVEs fixedProductsAlso
KB5070883 ExploitedCritical9.81Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022Support · Catalog
KB5070884 ExploitedCritical9.81Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022Support · Catalog
KB5070892 ExploitedCritical9.81Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022Support · Catalog
KB5070881 ExploitedCritical9.81Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022Support · Catalog
KB5070893 ExploitedCritical9.81Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022Support · Catalog
KB5070879 ExploitedCritical9.81Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022Support · Catalog
KB5070882 ExploitedCritical9.81Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022Support · Catalog
KB5070887 ExploitedCritical9.81Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022Support · Catalog
KB5070886 ExploitedCritical9.81Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022Support · Catalog
KB5066874 ExploitedHigh8.834Windows 11 Version 25H2 for x64-based Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5066877 ExploitedHigh8.834Windows 11 Version 25H2 for x64-based Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5066872 ExploitedHigh8.837Windows 11 Version 25H2 for x64-based Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5066876 ExploitedHigh8.837Windows 11 Version 25H2 for x64-based Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5066875 ExploitedHigh8.846Windows 11 Version 25H2 for x64-based Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5066873 ExploitedHigh8.850Windows 11 Version 25H2 for x64-based Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5068331Critical9.93.NET 8.0 installed on Linux, .NET 9.0 installed on Linux, ASP.NET Core 8.0Support · Catalog
KB5068332Critical9.93.NET 8.0 installed on Linux, .NET 9.0 installed on Linux, ASP.NET Core 8.0Support · Catalog
KB5065432High8.859Windows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit SystemsSupport · Catalog
KB5065306High8.859Windows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit SystemsSupport · Catalog
KB5065429High8.849Windows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit SystemsSupport · Catalog
KB5065431High8.850Windows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit SystemsSupport · Catalog
KB5065426High8.864Windows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit SystemsSupport · Catalog
KB5065474High8.864Windows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit SystemsSupport · Catalog
KB5065425High8.861Windows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit SystemsSupport · Catalog
KB5065428High8.852Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5002788High8.86Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription EditionSupport · Catalog
KB5002796High8.86Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription EditionSupport · Catalog
KB5002786High8.82Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription EditionSupport · Catalog
KB5066840High8.83Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 10 Version 1809 for 32-bit SystemsSupport · Catalog
KB5066367High8.83Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2019 Cumulative Update 14, Microsoft Exchange Server Subscription Edition RTMSupport · Catalog
KB5066368High8.83Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2019 Cumulative Update 14, Microsoft Exchange Server Subscription Edition RTMSupport · Catalog
KB5066366High8.83Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2019 Cumulative Update 14, Microsoft Exchange Server Subscription Edition RTMSupport · Catalog
KB5066369High8.83Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2019 Cumulative Update 14, Microsoft Exchange Server Subscription Edition RTMSupport · Catalog
KB5002797High8.48Office Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editionsSupport · Catalog
KB5002794High7.87Office Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editionsSupport · Catalog
KB5002792High7.82Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition), Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5002787High7.82Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5002798High7.82Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5002789High7.82Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5002790High7.81Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit SystemsSupport · Catalog
KB5002719High7.12Office Online Server, Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019Support · Catalog
KB5002757High7.12Office Online Server, Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019Support · Catalog
KB5002341High7.12Office Online Server, Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019Support · Catalog
KB5002720High7.12Office Online Server, Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019Support · Catalog
KB5066136Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066739Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066740Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066741Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066738Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066743Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066746Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066747Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066742Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066133Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066129Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066131Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
KB5066128Medium4.81.NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 9.0 installed on LinuxSupport · Catalog
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Reference: Microsoft CVE and vulnerability management, ranked by real-world risk, and the Microsoft patching guide.
Data notice: this page is provided as is, for informational purposes only, without warranty of any kind. Senserva, LLC does not guarantee the accuracy, completeness, or timeliness of third-party data (MSRC, NVD, CISA KEV, EPSS) and accepts no liability for actions taken based on it; verify against the authoritative Microsoft advisory before acting. Built daily with Senserva Trustworthy AI. All use of this data is subject to the Senserva EULA.