Vendor advisories

Microsoft Security Response Center

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

Current Checked 4 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-2026-70242
CriticalCVSS 9.8

Microsoft Office Outlook Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office LTSC 2021 for 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2024 for 64-bit editions, Microsoft Office LTSC 2024 for 32-bit editions
Fixed versions16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-70229
CriticalCVSS 8.1

Windows Active Directory Domain Services Remote Code Execution Vulnerability

Incorrect authorization in Active Directory Domain Services allows an unauthorized attacker to execute code over a network.

Affected productsWindows 11 Version 26H2 for ARM64-based Systems, Windows 11 Version 26H2 for x64-based Systems, Windows Server 2012 (Server Core installation), 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 KB5126646. Install KB5127646. Install KB5126655. Install KB5126653.

Microsoft Security Response CenterCVE-2026-70187
CriticalCVSS 8.1

Windows Remote Desktop Services Remote Code Execution Vulnerability

Use after free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.

Affected productsWindows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022 (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.

Microsoft Security Response CenterCVE-2026-70153
CriticalCVSS 9.8

Microsoft PostScript Printer Driver Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft PostScript Printer Driver 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.

Microsoft Security Response CenterCVE-2026-70147
CriticalCVSS 9.8

Microsoft PostScript Printer Driver Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft PostScript Printer Driver allows an unauthorized attacker to execute code over a network.

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.

Microsoft Security Response CenterCVE-2026-69802
CriticalCVSS 8.1

Network Device Enrollment Service (NDES) Remote Code Execution Vulnerability

Weak authentication in Network Device Enrollment Service (NDES) 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 KB5126655. Install KB5126646.

Microsoft Security Response CenterCVE-2026-69789
CriticalCVSS 7.5

Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-21413
CriticalCVSS 9.8

Raw Image Extension Remote Code Execution Vulnerability

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

Affected productsRaw Image Extension on Windows 10 Version 1607 for x64-based Systems, Raw Image Extension on Windows 10 Version 1607 for 32-bit Systems, Raw Image Extension on Windows 10 for x64-based Systems, Raw Image Extension on Windows 10 for 32-bit Systems
Fixed versions2.4.36.0, 2.5.35.0
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-108467
CriticalCVSS 8.8

Microsoft PostScript Printer Driver Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft PostScript Printer Driver allows an authorized 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.

Microsoft Security Response CenterCVE-2026-108460
CriticalCVSS 8.1

Windows Message Queuing Remote Code Execution Vulnerability

Use after free in Windows Message Queuing 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.

Microsoft Security Response CenterCVE-2026-108457
CriticalCVSS 8.1

Microsoft Windows PDF Remote Code Execution Vulnerability

Out-of-bounds write in Microsoft Windows PDF allows an unauthorized attacker to execute code over a network.

Affected productsWindows 11 Version 23H2 for x64-based Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows Server 2022 (Server Core installation)
Fixed versions10.0.22631.7652, 10.0.19044.7807, 10.0.19045.7807, 10.0.20348.5761
Vendor guidance

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

Microsoft Security Response CenterCVE-2026-108400
CriticalCVSS 8.8

HEVC Video Extensions Remote Code Execution Vulnerability

Integer overflow or wraparound in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.

Affected productsHEVC Video Extensions from Device Manufacturer on Windows 11 Version 26H1 for ARM64-based Systems, HEVC Video Extensions from Device Manufacturer on Windows 11 version 26H1 for x64-based Systems, HEVC Video Extensions from Device Manufacturer on Windows Server 2025, HEVC Video Extensions from Device Manufacturer on Windows 11 Version 23H2 for ARM64-based Systems
Fixed versions2.5.25.0, 2.4.86.0, 2.4.85.0, 2.4.87.0
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-108399
CriticalCVSS 7.2

Windows Hyper-V Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Hyper-V 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.

Microsoft Security Response CenterCVE-2026-108130
CriticalCVSS 7.8

Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave 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 KB5127646.

Microsoft Security Response CenterCVE-2026-105733
CriticalCVSS 8.8

Windows Hyper-V Remote Code Execution Vulnerability

Improper access control in Windows Hyper-V allows an authorized attacker to execute code locally.

Affected productsWindows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-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.

Microsoft Security Response CenterCVE-2026-105016
CriticalCVSS 9.8

Microsoft QUIC Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft QUIC 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

Release Notes Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646. Install KB5130034. Install KB5130035.

Microsoft Security Response CenterCVE-2026-102866
CriticalCVSS 8.1

Microsoft Office SharePoint Elevation of Privilege Vulnerability

Improper verification of cryptographic signature in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.

Affected productsMicrosoft SharePoint Server Subscription Edition
Fixed versions16.0.20326.20190
Vendor guidance

Install KB5002927.

Microsoft Security Response CenterCVE-2026-102857
CriticalCVSS 8.8

Microsoft Office Visio Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-102856
CriticalCVSS 8.8

Microsoft Office Visio Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-102855
CriticalCVSS 8.8

Microsoft Office Visio Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-102225
CriticalCVSS 8.8

Windows Text Shaping Remote Code Execution Vulnerability

Out-of-bounds read in Windows Text Shaping 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.

Microsoft Security Response CenterCVE-2026-102214
CriticalCVSS 8.8

Windows Hyper-V Remote Code Execution Vulnerability

Use after free in Windows Hyper-V 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.

Microsoft Security Response CenterCVE-2026-102211
CriticalCVSS 7.0

Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability

Use after free in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2016, Windows Server 2016 (Server Core installation), Windows 10 Version 1809 for x64-based Systems, Windows Server 2019
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.

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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