Vendor advisories

Microsoft Security Response Center

Browse 15,888 advisories from this official source. Search by product, CVE, severity, or advisory ID.

Current Checked 5 hours ago Checked every 6 hours

15,888 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.

RSS for these results
Microsoft Security Response CenterCVE-2026-96865
HighCVSS 5.6

Windows Secure Kernel Mode Information Disclosure Vulnerability

Exposure of sensitive system information to an unauthorized control sphere in Windows Secure Kernel Mode allows an authorized attacker to disclose information locally.

Affected productsWindows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for x64-based Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows Server 2022
Fixed versions10.0.19045.7807, 10.0.20348.5761, 10.0.22631.7652, 10.0.26100.9711
Vendor guidance

Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646. Install KB5126868. Install KB5126651.

Microsoft Security Response CenterCVE-2026-96864
HighCVSS 9.8

Microsoft Failover Cluster Virtual Driver Remote Code Execution Vulnerability

Double free in Microsoft Failover Cluster Virtual Driver allows an unauthorized attacker to execute code over a network.

Affected productsWindows Server 2012, Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows 10 Version 1607 for 32-bit Systems
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126646. Install KB5126655.

Microsoft Security Response CenterCVE-2026-96863
HighCVSS 6.8

Windows Storage Port Driver Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Storage Port Driver allows an unauthorized attacker to elevate privileges with a physical attack.

Affected productsWindows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems
Fixed versions10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711
Vendor guidance

Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96862
HighCVSS 7.8

Windows Spaceport.sys Elevation of Privilege Vulnerability

Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96861
HighCVSS 7.5

Network Device Enrollment Service (NDES) Denial of Service Vulnerability

Out-of-bounds read in Network Device Enrollment Service (NDES) allows an unauthorized attacker to deny service over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems
Fixed versions6.2.9200.26434, 10.0.14393.9612, 10.0.26100.33650, 6.3.9600.23470
Vendor guidance

Install KB5126835. Install KB5126868. Install KB5126646. Install KB5126836. Install KB5126651. Install KB5126655.

Microsoft Security Response CenterCVE-2026-96859
HighCVSS 5.5

Windows Imaging Component Information Disclosure Vulnerability

Out-of-bounds read in Windows Imaging Component allows an authorized attacker to disclose information locally.

Affected productsWindows 11 Version 26H2 for ARM64-based Systems, Windows 11 Version 26H2 for x64-based Systems, Windows Server 2025, Windows 11 Version 26H1 for ARM64-based Systems
Fixed versions10.0.26300.9711, 10.0.26100.33650, 10.0.28000.3231, 6.2.9200.26434
Vendor guidance

Install KB5127648. Install KB5126646. Install KB5127646. Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653.

Microsoft Security Response CenterCVE-2026-96857
HighCVSS 5.5

Windows Projected File System Information Disclosure Vulnerability

Files or directories accessible to external parties in Windows Projected File System allows an authorized attacker to disclose information locally.

Affected productsWindows 11 Version 26H2 for ARM64-based Systems, Windows 11 Version 26H2 for x64-based Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019 (Server Core installation)
Fixed versions10.0.26300.9711, 10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

Install KB5127648. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126646. Install KB5127646. Install KB5126653.

Microsoft Security Response CenterCVE-2026-96856
HighCVSS 7.8

Windows Management Instrumentation Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Management Instrumentation allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2012, Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows 10 Version 1607 for 32-bit Systems
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646. Install KB5126655.

Microsoft Security Response CenterCVE-2026-96855
HighCVSS 5.5

Windows Modern Device Management (MDM) Tampering Vulnerability

Improper access control in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering 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 versions10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807, 10.0.20348.5761
Vendor guidance

Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96854
HighCVSS 5.5

Windows Device Association Service Information Disclosure Vulnerability

Access of resource using incompatible type ('type confusion') in Windows Device Association Service allows an authorized attacker to disclose information locally.

Affected productsWindows Server 2012 R2, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2016
Fixed versions6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807
Vendor guidance

Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96853
HighCVSS 4.7

Windows Win32 Kernel Subsystem Information Disclosure Vulnerability

Time-of-check time-of-use (toctou) race condition in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96852
HighCVSS 7.0

Windows TCP/IP Elevation of Privilege Vulnerability

Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96851
HighCVSS 5.5

Windows Management Instrumentation Information Disclosure Vulnerability

Buffer over-read in Windows Management Instrumentation allows an authorized attacker to disclose information locally.

Affected productsWindows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5127646. Install KB5126646.

Microsoft Security Response CenterCVE-2026-96850
HighCVSS 5.5

Windows Modern Device Management (MDM) Information Disclosure Vulnerability

Use of uninitialized resource in Windows Modern Device Management (MDM) allows an authorized attacker to disclose information locally.

Affected productsWindows 11 Version 26H2 for x64-based Systems, Windows Server 2025, Windows Server 2025 (Server Core installation), Windows 11 Version 26H1 for ARM64-based Systems
Fixed versions10.0.26300.9711, 10.0.26100.33650, 10.0.28000.3231, 10.0.17763.9376
Vendor guidance

Install KB5127648. Install KB5126646. Install KB5127646. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653.

Microsoft Security Response CenterCVE-2026-96849
HighCVSS 5.5

Windows Kernel-Mode Drivers Information Disclosure Vulnerability

Use of uninitialized resource in Windows Kernel-Mode Drivers allows an authorized attacker to disclose information locally.

Affected productsWindows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems
Fixed versions10.0.28000.3231
Vendor guidance

Install KB5127646.

Microsoft Security Response CenterCVE-2026-96848
HighCVSS 5.5

Windows Win32 Kernel Subsystem Information Disclosure Vulnerability

Buffer over-read in Windows Win32 Kernel Subsystem 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 versions10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807, 10.0.20348.5761
Vendor guidance

Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5126646.

Microsoft Security Response CenterCVE-2026-96847
HighCVSS 7.8

WebDAV Elevation of Privilege Vulnerability

Untrusted pointer dereference in WebDAV allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems
Fixed versions10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711
Vendor guidance

Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646. Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655.

Microsoft Security Response CenterCVE-2026-96846
HighCVSS 5.5

WebDAV Information Disclosure Vulnerability

Out-of-bounds read in WebDAV allows an authorized attacker to disclose information locally.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96843
HighCVSS 7.8

WebDAV Elevation of Privilege Vulnerability

Heap-based buffer overflow in WebDAV allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96325
HighCVSS 7.5

Windows SMB Server Denial of Service Vulnerability

Missing reference to active allocated resource in Windows SMB Server allows an unauthorized attacker to deny service over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96324
HighCVSS 7.8

Microsoft Windows Search Component Elevation of Privilege Vulnerability

Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2012, Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96323
HighCVSS 7.0

Windows Update Elevation of Privilege Vulnerability

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

Affected productsWindows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for x64-based Systems
Fixed versions10.0.19044.7807, 10.0.19045.7807, 10.0.20348.5761, 10.0.22631.7652
Vendor guidance

Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96322
HighCVSS 7.0

Windows Remote Desktop Protocol Elevation of Privilege Vulnerability

Use after free in Windows Remote Desktop Protocol allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

Microsoft Security Response CenterCVE-2026-96321
HighCVSS 5.5

Remote Desktop Display Driver Information Disclosure Vulnerability

Out-of-bounds read in Remote Desktop Display Driver allows an authorized attacker to disclose information locally.

Affected productsWindows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 22H2 for 32-bit Systems
Fixed versions10.0.19044.7807, 10.0.19045.7807, 10.0.20348.5761, 10.0.22631.7652
Vendor guidance

Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

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Start with the vendor's bulletin.

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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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