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Vendor advisories

Microsoft Security Response Center

Browse 15,943 advisories from this official source. Search by product, CVE, severity, or advisory ID.

Current Checked 31 minutes ago Checked every 6 hours
All vendor sources Official source

15,943 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-2026-85876
HighCVSS 7.0

Microsoft SQL Server Elevation of Privilege Vulnerability

Use after free in SQL Server allows an authorized attacker to elevate privileges locally.

Affected productsMicrosoft SQL Server 2019 for x64-based Systems (GDR), Microsoft SQL Server 2019 for x64-based Systems (CU32), Microsoft SQL Server 2025 for x64-based Systems (GDR), Microsoft SQL Server 2022 for x64-based Systems (CU27)
Fixed versions15.0.2200.2, 15.0.4500.2, 17.0.1145.4, 16.0.4305.5
Vendor guidance

Install KB5128495. Install KB5128494. Install KB5128492. Install KB5126934. Install KB5126967. Install KB5128493.

CVE-2026-85876
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85874
HighCVSS 7.8

Windows Message Queuing Queue Manager Remote Code Execution Vulnerability

Use after free in Windows Message Queuing Queue Manager allows an authorized attacker to execute code 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-85874
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85873
HighCVSS 6.5

Skype for Business Elevation of Privilege Vulnerability

Improper authorization in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges over a network.

Affected productsSkype for Business Server Subscription Edition CU1, Skype for Business Server 2019 CU8, Skype for Business Server 2015 CU13
Fixed versions7.0.2046.889, 7.0.2046.583, 6.0.9319.886
Vendor guidance

Install KB5131692. Install KB5131693. Install KB5132779.

CVE-2026-85873
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85872
HighCVSS 7.8

Windows Storage VSP Driver Elevation of Privilege Vulnerability

Use after free in Windows Storage VSP Driver allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 26H2 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019
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.

CVE-2026-85872
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85871
HighCVSS 7.8

Windows Kernel-Mode Drivers Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Kernel-Mode Drivers 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-85871
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85869
HighCVSS 7.8

Microsoft Windows Search Component Elevation of Privilege Vulnerability

Heap-based buffer overflow in Microsoft Windows Search Component 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-2026-85869
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85867
HighCVSS 7.8

Windows Remote Access Connection Manager Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Remote Access Connection Manager 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 KB5126836.

CVE-2026-85867
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85866
HighCVSS 4.7

Windows ALPC Information Disclosure Vulnerability

Exposure of sensitive system information to an unauthorized control sphere in Windows ALPC 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 KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-85866
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85865
HighCVSS 5.5

Windows DHCP Server Security Feature Bypass Vulnerability

Improper authentication in Windows DHCP Server allows an authorized attacker to bypass a security feature 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, 10.0.20348.5761, 10.0.26100.33650, 10.0.14393.9612
Vendor guidance

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

CVE-2026-85865
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85864
HighCVSS 7.8

Python Elevation of Privilege Vulnerability

Improper privilege management in Python 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-85864
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85863
HighCVSS 7.8

Clipboard User Service Elevation of Privilege Vulnerability

Use after free in Windows Clipboard User Service 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-85863
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85861
HighCVSS 7.8

Clipboard User Service Elevation of Privilege Vulnerability

Use after free in Windows Clipboard User Service 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-85861
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85860
HighCVSS 7.8

Windows Message Queuing Queue Manager Elevation of Privilege Vulnerability

Use after free in Windows Message Queuing Queue Manager 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-2026-85860
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85859
HighCVSS 6.5

Windows Message Queuing Queue Manager Denial of Service Vulnerability

Null pointer dereference in Windows Message Queuing Queue Manager allows an authorized 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-85859
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85858
HighCVSS 7.8

Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability

Out-of-bounds read in Windows Win32 Kernel Subsystem 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 2022, Windows Server 2022 (Server Core installation)
Fixed versions10.0.26300.9711, 10.0.20348.5761, 10.0.26100.33650, 10.0.26200.9711
Vendor guidance

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

CVE-2026-85858
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85857
HighCVSS 5.5

Windows Kernel-Mode Drivers Information Disclosure Vulnerability

Insertion of sensitive information into log file in Windows Kernel-Mode Drivers 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 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-2026-85857
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85856
HighCVSS 7.1

Internet Connection Sharing (ICS) Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Internet Connection Sharing (ICS) allows an authorized attacker to execute code over an adjacent network.

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-2026-85856
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85855
HighCVSS 7.0

Windows DWM Core Library Elevation of Privilege Vulnerability

Use after free in Windows DWM Core Library 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 versions10.0.26100.33650, 10.0.26200.9711, 10.0.26100.9711, 10.0.28000.3231
Vendor guidance

Install KB5126646. Install KB5127648. Install KB5127646.

CVE-2026-85855
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85854
HighCVSS 7.0

Windows DWM Core Library Elevation of Privilege Vulnerability

Use after free in Windows DWM Core Library 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-85854
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85853
HighCVSS 7.0

Windows DWM Core Library Elevation of Privilege Vulnerability

Out-of-bounds read in Windows DWM Core Library 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-85853
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85852
HighCVSS 5.5

Windows Management Instrumentation Information Disclosure Vulnerability

Out-of-bounds read in Windows Management Instrumentation 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-85852
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85851
HighCVSS 7.8

Windows SmartScreen Elevation of Privilege Vulnerability

Use after free in Windows SmartScreen 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 versions10.0.26100.33650, 10.0.26200.9711, 10.0.22631.7652, 10.0.26100.9711
Vendor guidance

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

CVE-2026-85851
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-85849
HighCVSS 7.8

Windows AppX Deployment Service Elevation of Privilege Vulnerability

Improper link resolution before file access ('link following') in Windows AppX Deployment Service 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-85849
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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