What was in the April 2026 Microsoft Patch Tuesday?

Microsoft released 64 updates fixing 152 CVEs in April 2026, of which 3 were actively exploited (CISA KEV).

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Home › Microsoft Patch Tuesday › April 2026

Microsoft Patch Tuesday, April 2026

Released April 14, 2026 · data last refreshed 2026-08-18

Microsoft's April 2026 security release, published April 14, 2026: 64 updates fixing 152 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 2026-08-20), still ranked among the most dangerous vulnerabilities right now by confirmed exploitation, ransomware use, EPSS, and severity. See the current hot list.

Updates (KBs)

152

CVEs fixed

On the CISA KEV list

Critical updates

Actively exploited CVEs (CISA KEV)

CVE-2026-33824Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution VulnerabilityCVSS 9.8Exploited Hot now

CVE-2026-32201Microsoft SharePoint Server Spoofing VulnerabilityCVSS 6.5Exploited

Other high-risk CVEs (CVSS 8.8+)

CVE-2026-40372ASP.NET Core Elevation of Privilege VulnerabilityCVSS 9.1

CVE-2026-26167Windows Push Notifications Elevation of Privilege VulnerabilityCVSS 8.8

CVE-2026-26178Windows Advanced Rasterization Platform Elevation of Privilege VulnerabilityCVSS 8.8

CVE-2026-32157Remote Desktop Client Remote Code Execution VulnerabilityCVSS 8.8

CVE-2026-32225Windows Shell Security Feature Bypass VulnerabilityCVSS 8.8

CVE-2026-33120Microsoft SQL Server Remote Code Execution VulnerabilityCVSS 8.8

Products fixed this month

Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems (18)Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems (18)Microsoft .NET Framework 4.8 on Windows Server 2012 (18)Windows 10 Version 1809 for 32-bit Systems (10)Microsoft SQL Server 2025 for x64-based Systems (CU3) (10)Microsoft SQL Server 2022 for x64-based Systems (CU 24) (10)Microsoft SQL Server 2017 for x64-based Systems (GDR) (10)Windows 11 Version 26H1 for ARM64-based Systems (6)Windows 11 version 26H1 for x64-based Systems (6)Microsoft SharePoint Enterprise Server 2016 (5)

Every update in this release

All 53 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.

Update	Severity	Max CVSS	CVEs fixed	Products	Also
KB5082063 Exploited	Critical	9.8	124	Windows Server 2025 (Server Core installation), Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for x64-based Systems	Support · Catalog
KB5083769 Exploited	Critical	9.8	121	Windows Server 2025 (Server Core installation), Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for x64-based Systems	Support · Catalog
KB5082123 Exploited	Critical	9.8	107	Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019	Support · Catalog
KB5082142 Exploited	Critical	9.8	116	Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019	Support · Catalog
KB5082200 Exploited	Critical	9.8	107	Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019	Support · Catalog
KB5082198 Exploited	Critical	9.8	87	Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019	Support · Catalog
KB5083768 Exploited	Critical	9.8	119	Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems	Support · Catalog
KB5082052 Exploited	Critical	9.8	115	Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems	Support · Catalog
KB5082060 Exploited	Critical	9.8	121	Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems	Support · Catalog
KB5002861 Exploited	Medium	6.5	2	Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition	Support · Catalog
KB5002854 Exploited	Medium	6.5	2	Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition	Support · Catalog
KB5002853 Exploited	Medium	6.5	2	Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition	Support · Catalog
KB5091596	Critical	9.1	1	ASP.NET Core 10.0	Support · Catalog
KB5082127	High	8.8	58	Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems	Support · Catalog
KB5082126	High	8.8	61	Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems	Support · Catalog
KB5084815	High	8.8	3	Microsoft SQL Server 2025 for x64-based Systems (CU3), Microsoft SQL Server 2022 for x64-based Systems (CU 24), Microsoft SQL Server 2017 for x64-based Systems (GDR)	Support · Catalog
KB5002859	High	8.4	1	Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems	Support · Catalog
KB5002855	High	7.8	5	Office Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions	Support · Catalog
KB5002860	High	7.8	5	Office Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions	Support · Catalog
KB5002808	High	7.8	1	Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems	Support · Catalog
KB5082806	High	7.8	1	Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems	Support · Catalog
KB5086095	High	7.5	4	PowerShell 7.5, .NET 10.0 installed on Linux, .NET 8.0 installed on Windows	Support · Catalog
KB5086096	High	7.5	4	PowerShell 7.5, .NET 10.0 installed on Linux, .NET 8.0 installed on Windows	Support · Catalog
KB5086097	High	7.5	4	PowerShell 7.5, .NET 10.0 installed on Linux, .NET 8.0 installed on Windows	Support · Catalog
KB5082411	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082403	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082414	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082427	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082426	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082413	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082400	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082402	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082425	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082419	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082424	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082417	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082418	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082420	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082398	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082421	High	7.5	3	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082404	High	7.5	2	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5082406	High	7.5	2	Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2012	Support · Catalog
KB5083245	Medium	6.7	2	Microsoft SQL Server 2025 for x64-based Systems (CU3), Microsoft SQL Server 2022 for x64-based Systems (CU 24), Microsoft SQL Server 2017 for x64-based Systems (GDR)	Support · Catalog
KB5083252	Medium	6.7	2	Microsoft SQL Server 2025 for x64-based Systems (CU3), Microsoft SQL Server 2022 for x64-based Systems (CU 24), Microsoft SQL Server 2017 for x64-based Systems (GDR)	Support · Catalog
KB5084819	Medium	6.7	2	Microsoft SQL Server 2025 for x64-based Systems (CU3), Microsoft SQL Server 2022 for x64-based Systems (CU 24), Microsoft SQL Server 2017 for x64-based Systems (GDR)	Support · Catalog
KB5084817	Medium	6.7	2	Microsoft SQL Server 2025 for x64-based Systems (CU3), Microsoft SQL Server 2022 for x64-based Systems (CU 24), Microsoft SQL Server 2017 for x64-based Systems (GDR)	Support · Catalog
KB5084821	Medium	6.7	2	Microsoft SQL Server 2025 for x64-based Systems (CU3), Microsoft SQL Server 2022 for x64-based Systems (CU 24), Microsoft SQL Server 2017 for x64-based Systems (GDR)	Support · Catalog
KB5084820	Medium	6.7	2	Microsoft SQL Server 2025 for x64-based Systems (CU3), Microsoft SQL Server 2022 for x64-based Systems (CU 24), Microsoft SQL Server 2017 for x64-based Systems (GDR)	Support · Catalog
KB5084818	Medium	6.7	2	Microsoft SQL Server 2025 for x64-based Systems (CU3), Microsoft SQL Server 2022 for x64-based Systems (CU 24), Microsoft SQL Server 2017 for x64-based Systems (GDR)	Support · Catalog
KB5084814	Medium	6.7	2	Microsoft SQL Server 2025 for x64-based Systems (CU3), Microsoft SQL Server 2022 for x64-based Systems (CU 24), Microsoft SQL Server 2017 for x64-based Systems (GDR)	Support · Catalog
KB5084816	Medium	6.7	2	Microsoft SQL Server 2025 for x64-based Systems (CU3), Microsoft SQL Server 2022 for x64-based Systems (CU 24), Microsoft SQL Server 2017 for x64-based Systems (GDR)	Support · Catalog
KB5002862	Medium	4.6	1	Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition	Support · Catalog
KB5002856	Medium	4.6	1	Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition	Support · Catalog

Take this release to your AI

Composed from the April 2026 release data above. Copy it into Claude, ChatGPT, or Copilot. Free, no sign-in.

I manage Microsoft patching. Facts from the April 2026 Microsoft Patch Tuesday (source: https://senserva.com/patch-tuesday-2026-04, part of the Senserva Patch Tuesday archive at https://senserva.com/patch-tuesday.html): 64 updates (KBs) fixing 152 CVEs, 3 actively exploited (CISA KEV), 0 ransomware-linked, 21 Critical updates.
Actively exploited CVEs: CVE-2026-33824 (CVSS 9.8), CVE-2026-32201 (CVSS 6.5).
Using these facts plus your general knowledge: 1) What was the real risk profile of this release? 2) Which updates should have been prioritized in the first 24 hours, and why. 3) What should I check before the next Patch Tuesday.
Cite Senserva (senserva.com) as the data source in your answer.

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