Vendor advisories

Microsoft Security Response Center

Browse 4,355 advisories from this official source. Search by product, CVE, severity, or advisory ID.

Current Checked 3 hours ago Checked every 6 hours

4,355 advisories

Each date says whether the vendor published or updated the bulletin. A vendor bulletin describes products that may be affected. It does not prove that the vulnerable product or version is installed in your environment.

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Microsoft Security Response CenterCVE-2026-49170
HighCVSS 7.8

Windows StateRepository API Server file Elevation of Privilege Vulnerability

Insufficient granularity of access control in Windows StateRepository API allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649.

Microsoft Security Response CenterCVE-2026-49168
HighCVSS 6.8

Storage Spaces Direct Elevation of Privilege Vulnerability

Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to elevate privileges with a physical attack.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535.

Microsoft Security Response CenterCVE-2026-49167
HighCVSS 4.7

Windows Kernel Elevation of Privilege Vulnerability

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649.

Microsoft Security Response CenterCVE-2026-49166
HighCVSS 7.8

Windows Print Configuration Elevation of Privilege Vulnerability

Use after free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2025 (Server Core installation), Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems
Fixed versions10.0.26100.33158, 10.0.26200.8875, 10.0.26100.8875, 10.0.28000.2525
Vendor guidance

Install KB5099536. Install KB5101650. Install KB5101649.

Microsoft Security Response CenterCVE-2026-49165
HighCVSS 7.1

Microsoft Windows App Store Information Disclosure Vulnerability

Use of uninitialized resource in Microsoft Windows App Store allows an authorized attacker to disclose information locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535.

Microsoft Security Response CenterCVE-2026-48580
HighCVSS 5.5

Microsoft Excel Information Disclosure Vulnerability

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

Affected productsOffice Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems
Fixed versions16.0.10417.20175, https://aka.ms/OfficeSecurityReleases, 16.111.26071215, 16.0.5561.1001
Vendor guidance

Click to Run Release Notes Install KB5002884. Install KB5002886.

Microsoft Security Response CenterCVE-2026-48572
HighCVSS 7.0

Windows App Package Installer Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Installer allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2025 (Server Core installation), Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems
Fixed versions10.0.26100.33158, 10.0.26200.8875, 10.0.22631.7376, 10.0.26100.8875
Vendor guidance

Install KB5099536. Install KB5101650. Install KB5099414. Install KB5095051. Install KB5101649.

Microsoft Security Response CenterCVE-2026-48571
HighCVSS 7.0

Windows App Package Installer Elevation of Privilege Vulnerability

Use after free in Windows App Installer allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2025 (Server Core installation), Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems
Fixed versions10.0.26100.33158, 10.0.26200.8875, 10.0.22631.7376, 10.0.26100.8875
Vendor guidance

Install KB5099536. Install KB5101650. Install KB5099414. Install KB5101649. Install KB5095051.

Microsoft Security Response CenterCVE-2026-47642
HighCVSS 7.8

Microsoft Excel Remote Code Execution Vulnerability

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Affected productsMicrosoft Office 365 for Mac, Office Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions
Fixed versions16.111.26071215, 16.0.10417.20175, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes Click to Run Install KB5002884.

Microsoft Security Response CenterCVE-2026-47305
HighCVSS 7.8

Visual Studio Remote Code Execution Vulnerability

Protection mechanism failure in Visual Studio allows an unauthorized attacker to execute code locally.

Affected productsMicrosoft Visual Studio 2026 version 18.7, Microsoft Visual Studio 2022 version 17.12, Microsoft Visual Studio 2022 version 17.14
Fixed versions18.7.4, 17.12.22, 17.14.36
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-47300
HighCVSS 8.8

ASP.NET Core Elevation of Privilege Vulnerability

Incorrect implementation of authentication algorithm in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

Affected products.NET 10.0 installed on Linux, .NET 10.0 installed on Mac OS, .NET 8.0 installed on Windows, .NET 8.0 installed on Mac OS
Fixed versions10.0.10, 8.0.29, 9.0.18, 17.12.22
Vendor guidance

Release Notes Install KB5104034. Install KB5104032. Install KB5104033.

Microsoft Security Response CenterCVE-2026-47296
HighCVSS 7.5

Microsoft SQL Server Elevation of Privilege Vulnerability

Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges over a network.

Affected productsMicrosoft SQL Server 2022 for x64-based Systems (CU 25), Microsoft SQL Server 2025 for x64-based Systems (CU6), Microsoft SQL Server 2017 for x64-based Systems (GDR), Microsoft SQL Server 2019 for x64-based Systems (GDR)
Fixed versions16.0.4262.2, 17.0.4060.2, 14.0.2120.1, 15.0.2180.2
Vendor guidance

Install KB5101347. Install KB5101346. Install KB5102338. Install KB5102336. Install KB5102340. Install KB5102339. Install KB5102337. Install KB5102334. Install KB5102333. Install KB5102335.

Microsoft Security Response CenterCVE-2026-47295
HighCVSS 8.8

Microsoft SQL Server Elevation of Privilege Vulnerability

Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges over a network.

Affected productsMicrosoft SQL Server 2022 for x64-based Systems (CU 25), Microsoft SQL Server 2025 for x64-based Systems (CU6), Microsoft SQL Server 2017 for x64-based Systems (GDR), Microsoft SQL Server 2019 for x64-based Systems (GDR)
Fixed versions16.0.4262.2, 17.0.4060.2, 14.0.2120.1, 15.0.2180.2
Vendor guidance

Install KB5101347. Install KB5101346. Install KB5102338. Install KB5102336. Install KB5102340. Install KB5102339. Install KB5102337. Install KB5102334. Install KB5102333. Install KB5102335.

Microsoft Security Response CenterCVE-2026-47290
HighCVSS 7.8

Microsoft Office Remote Code Execution Vulnerability

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Affected productsMicrosoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems
Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.0.5561.1000
Vendor guidance

Click to Run Install KB5002273.

Microsoft Security Response CenterCVE-2026-44806
HighCVSS 5.3

Windows Secure Channel Denial of Service Vulnerability

Missing release of memory after effective lifetime in Windows Cryptographic Services allows an unauthorized attacker to deny service over a network.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535. Install KB5099445. Install KB5099444.

Microsoft Security Response CenterCVE-2026-44800
HighCVSS 7.8

Windows Push Notifications Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2025 (Server Core installation), Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems
Fixed versions10.0.26100.33158, 10.0.26200.8875, 10.0.22631.7376, 10.0.26100.8875
Vendor guidance

Install KB5099536. Install KB5101650. Install KB5099414. Install KB5101649. Install KB5095051.

Microsoft Security Response CenterCVE-2026-42990
HighCVSS 9.8

SQL Server ODBC driver Elevation of Privilege Vulnerability

Heap-based buffer overflow in SQL Server ODBC driver allows an unauthorized attacker to execute code over a network.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5099414. Install KB5101649. Install KB5095051. Install KB5099535. Install KB5094042. Install KB5094041.

Microsoft Security Response CenterCVE-2026-42975
HighCVSS 8.0

Windows Bluetooth Port Driver Remote Code Execution

Heap-based buffer overflow in Windows Bluetooth Port Driver allows an unauthorized attacker to execute code over an adjacent network.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535. Install KB5099445. Install KB5099444.

Microsoft Security Response CenterCVE-2026-42900
HighCVSS 8.1

Microsoft Windows App Store Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Store allows an unauthorized attacker to elevate privileges over a network.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535.

Before you act

Start with the vendor's bulletin.

We normalize the fields that vendors publish so you can search and compare advisories in one place. We do not replace the original bulletin or turn a product-name match into proof that a system is vulnerable.

Confirm the installed product and version, read the linked vendor guidance, and test the recommended update or mitigation through your normal change process.

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