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Vendor advisories

Microsoft Security Response Center

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

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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.

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Microsoft Security Response CenterCVE-2026-96933
HighCVSS 7.8

Windows COM+ Event System Service Elevation of Privilege Vulnerability

Untrusted pointer dereference in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 26H2 for ARM64-based Systems, Windows 11 Version 26H2 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
Fixed versions10.0.26300.9711, 10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807
Vendor guidance

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

CVE-2026-96933
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96932
HighCVSS 7.0

Windows Embedded Mode Service Elevation of Privilege Vulnerability

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

Affected productsWindows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems
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. Install KB5126868.

CVE-2026-96932
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96931
HighCVSS 7.8

Windows NTFS Elevation of Privilege Vulnerability

Untrusted pointer dereference in Windows NTFS 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.

CVE-2026-96931
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96930
HighCVSS 5.5

Windows Universal Disk Format File System Driver (UDFS) Information Disclosure Vulnerability

Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to disclose information locally.

Affected productsWindows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 26H2 for ARM64-based Systems
Fixed versions10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711, 10.0.26100.33650
Vendor guidance

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

CVE-2026-96930
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96929
HighCVSS 7.8

Windows Kernel Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Kernel 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.

CVE-2026-96929
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96928
HighCVSS 7.8

Windows NTFS Elevation of Privilege Vulnerability

Out-of-bounds read in Windows NTFS 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.

CVE-2026-96928
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96927
HighCVSS 5.5

Windows NTFS Information Disclosure Vulnerability

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

Affected productsWindows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-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 KB5126835. Install KB5126836. Install KB5126868. Install KB5126651.

CVE-2026-96927
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96926
HighCVSS 5.5

Role: DNS Server Tampering Vulnerability

Missing authorization in DNS Server allows an authorized attacker to perform tampering 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 KB5126655. Install KB5126646.

CVE-2026-96926
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96925
HighCVSS 5.5

Windows NTFS Information Disclosure Vulnerability

Integer underflow (wrap or wraparound) in Windows NTFS 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.

CVE-2026-96925
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96924
HighCVSS 9.8

Windows OLE Remote Code Execution Vulnerability

Untrusted pointer dereference in Windows OLE allows an unauthorized attacker to execute code 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.

CVE-2026-96924
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96923
HighCVSS 7.0

Windows Workstation Service Elevation of Privilege Vulnerability

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

Affected productsWindows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems
Fixed versions10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711, 10.0.26100.33650
Vendor guidance

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

CVE-2026-96923
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96921
HighCVSS 5.5

Windows Message Queuing Queue Manager Information Disclosure Vulnerability

Access of resource using incompatible type ('type confusion') in Windows Message Queuing Queue Manager 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.

CVE-2026-96921
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96920
HighCVSS 7.8

Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for x64-based Systems, Windows 10 Version 22H2 for ARM64-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. Install KB5126868. Install KB5126651.

CVE-2026-96920
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96919
HighCVSS 7.0

Windows Broadcast DVR User Service Elevation of Privilege Vulnerability

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for x64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems
Fixed versions10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807, 10.0.22631.7652
Vendor guidance

Install KB5126651. Install KB5126657. Install KB5126653. Install KB5127648. Install KB5127646.

CVE-2026-96919
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96918
HighCVSS 7.8

Windows NTFS Elevation of Privilege Vulnerability

Improper access control in Windows NTFS allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2016, Windows Server 2016 (Server Core installation)
Fixed versions10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-96918
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96917
HighCVSS 8.8

Windows PCI Bus Driver Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows PCI Bus Driver 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 versions10.0.17763.9376, 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.

CVE-2026-96917
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96916
HighCVSS 7.8

Windows NTFS Elevation of Privilege Vulnerability

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

Affected productsWindows 10 Version 21H2 for x64-based Systems, Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for ARM64-based 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. Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651.

CVE-2026-96916
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96915
HighCVSS 7.8

Windows Kernel-Mode Drivers Elevation of Privilege Vulnerability

Integer overflow or wraparound in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 26H2 for ARM64-based Systems, Windows 11 Version 26H2 for x64-based Systems, Windows Server 2012, Windows Server 2012 R2
Fixed versions10.0.26300.9711, 6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612
Vendor guidance

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

CVE-2026-96915
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96911
HighCVSS 7.8

Microsoft Windows Search Component Elevation of Privilege Vulnerability

Improper link resolution before file access ('link following') in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems
Fixed versions10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711, 10.0.26100.33650
Vendor guidance

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

CVE-2026-96911
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96910
HighCVSS 5.5

Microsoft Windows Search Component Information Disclosure Vulnerability

Untrusted pointer dereference in Microsoft Windows Search Component allows an authorized attacker to disclose information locally.

Affected productsWindows Server 2012, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows 10 Version 1809 for 32-bit Systems
Fixed versions6.2.9200.26434, 10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807
Vendor guidance

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

CVE-2026-96910
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96909
HighCVSS 9.8

Windows BitLocker Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows BitLocker allows an unauthorized attacker to execute code over a network.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems
Fixed versions10.0.20348.5761, 10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711
Vendor guidance

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

CVE-2026-96909
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96868
HighCVSS 7.0

Windows Kernel Elevation of Privilege Vulnerability

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

Affected productsWindows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems
Fixed versions10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711, 10.0.26100.33650
Vendor guidance

Install KB5127648. Install KB5126646.

CVE-2026-96868
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96867
HighCVSS 7.8

Windows NTFS Remote Code Execution Vulnerability

Out-of-bounds read in Windows NTFS allows an authorized attacker to execute code 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.

CVE-2026-96867
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96866
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 x64-based Systems, Windows Server 2016
Fixed versions6.2.9200.26434, 10.0.14393.9612, 10.0.17763.9376, 10.0.26100.33650
Vendor guidance

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

CVE-2026-96866
Read the vendor advisory Watch this product
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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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