Vendor advisories

Microsoft Security Response Center

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

Current Checked about an hour 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.

RSS for these results
Microsoft Security Response CenterCVE-2026-63523
HighCVSS 6.5

Skype for Business Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Skype for Business allows an unauthorized attacker to perform spoofing over a network.

Affected productsSkype for Business Server 2015 CU13, Skype for Business Server Subscription Edition CU1, Skype for Business Server 2019 CU8
Fixed versions6.0.9319.885, 7.0.2046.879, 7.0.2046.569
Vendor guidance

Install KB5123301. Install KB5123287. Install KB5123300.

Microsoft Security Response CenterCVE-2026-62813
HighCVSS 7.5

Windows Active Directory Domain Services Remote Code Execution Vulnerability

Use after free in Active Directory Domain Services allows an authorized 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 versions10.0.17763.9245, 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-2026-62810
HighCVSS 7.8

Active Directory Certificate Services (AD CS) Elevation of Privilege Vulnerability

Heap-based buffer overflow in Active Directory Certificate Services (AD CS) 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 versions10.0.17763.9245, 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-2026-62804
HighCVSS 7.8

Microsoft Word Remote Code Execution Vulnerability

External control of file name or path in Microsoft Office Word 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, 16.0.17932.20960, 16.0.5569.1002
Vendor guidance

Click to Run Release Notes Install KB5002923.

Microsoft Security Response CenterCVE-2026-62801
HighCVSS 6.5

Microsoft PowerShell Security Feature Bypass Vulnerability

Improper limitation of a pathname to a restricted directory ('path traversal') in Windows PowerShell allows an unauthorized attacker to bypass a security feature 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 versions10.0.17763.9245, 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-2026-62762
HighCVSS 6.5

Windows Active Directory Domain Services Denial of Service Vulnerability

Null pointer dereference in Active Directory Domain Services 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 versions10.0.17763.9245, 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-2026-62759
HighCVSS 7.5

Windows Netlogon Spoofing Vulnerability

Authentication bypass by spoofing in Windows Netlogon allows an unauthorized attacker to perform spoofing 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-2026-62744
HighCVSS 8.8

Microsoft Windows Media Foundation Remote Code Execution Vulnerability

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

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 versions10.0.26100.33438, 10.0.26200.9445, 10.0.26100.9445, 10.0.28000.2954
Vendor guidance

Install KB5122871. Install KB5124008. Install KB5124012.

Microsoft Security Response CenterCVE-2026-62706
HighCVSS 8.8

Microsoft Windows Media Foundation Remote Code Execution Vulnerability

Out-of-bounds read in Microsoft Windows Media Foundation 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 versions10.0.17763.9245, 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-2026-62697
HighCVSS 7.8

Windows Push Notifications Elevation of Privilege Vulnerability

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

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems
Fixed versions10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725, 10.0.26100.33438
Vendor guidance

Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012.

Microsoft Security Response CenterCVE-2026-62694
HighCVSS 7.0

Windows Installer Elevation of Privilege Vulnerability

Use after free in Windows Installer 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 versions10.0.17763.9245, 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-2026-58649
HighCVSS 6.5

.NET Information Disclosure Vulnerability

Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.

Affected productsMicrosoft Visual Studio 2022 version 17.14, .NET 11.0 installed on Linux, .NET 11.0 installed on Mac OS, .NET 8.0 installed on Windows
Fixed versions17.14.40, 11.0 RC1, 8.0.130, 8.0.424, 9.0.120, 9.0.317
Vendor guidance

Release Notes Install KB5126104. Install KB5126105. Install KB5126106.

Microsoft Security Response CenterCVE-2026-58600
HighCVSS 7.8

HEVC Video Extensions Elevation of Privilege Vulnerability

Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to elevate privileges locally.

Affected productsHEVC Video Extensions, HEVC Video Extensions for Licensed Applications, HEVC Video Extensions from Device Manufacturer on Windows 10 Version 1809 for 32-bit Systems, HEVC Video Extensions from Device Manufacturer on Windows 10 Version 1809 for x64-based Systems
Fixed versions2.4.87.0, 2.4.85.0, 2.4.86.0, 2.5.25.0
Vendor guidance

Update Information

Microsoft Security Response CenterCVE-2026-56198
HighCVSS 7.8

Microsoft Trace Data Helper Elevation of Privilege Vulnerability

Out-of-bounds read in Microsoft Trace Data Helper 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 versions10.0.26100.33438, 10.0.26200.9445, 10.0.26100.9445, 10.0.28000.2954
Vendor guidance

Install KB5122871. Install KB5124008. Install KB5124012.

Microsoft Security Response CenterCVE-2026-56177
HighCVSS 7.8

Windows Server Elevation of Privilege Vulnerability

Use after free in Windows Server 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 versions10.0.17763.9245, 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.

Microsoft Security Response CenterCVE-2026-56172
HighCVSS 7.8

Windows VHD miniport driver Elevation of Privilege Vulnerability

Use after free in Windows VHD miniport 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 versions10.0.17763.9245, 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.

Microsoft Security Response CenterCVE-2026-55007
HighCVSS 8.1

Microsoft Exchange Server Remote Code Execution Vulnerability

Double free in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Exchange Server 2019 Cumulative Update 14, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server Subscription Edition RTM
Fixed versions15.02.1544.046, 15.02.1748.051, 15.02.2562.049
Vendor guidance

Install KB5121610. Install KB5121609. Install KB5121608.

Microsoft Security Response CenterCVE-2026-50349
HighCVSS 7.0

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock 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 versions10.0.17763.9245, 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-2026-47297
HighCVSS 8.1

Microsoft SQL Server Remote Code Execution Vulnerability

Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft SQL Server 2019 for x64-based Systems (GDR), Microsoft SQL Server 2022 for x64-based Systems (GDR), Microsoft SQL Server 2025 for x64-based Systems (GDR), Microsoft SQL Server 2019 for x64-based Systems (CU 32)
Fixed versions15.0.2190.7, 16.0.1200.5, 17.0.1135.8, 15.0.4490.9
Vendor guidance

Install KB5122773. Install KB5122771. Install KB5122770. Install KB5122772. Install KB5122769. Install KB5122768.

Microsoft Security Response CenterCVE-2025-70873
HighCVSS 7.5

An information disclosure issue in the zipfileInflate function in the zipfile extension in SQLite v3.51.1 and earlier allows attackers to obtain heap memory via supplying a crafted ZIP file.

Mariner

Affected productsazl3 sqlite 3.44.0-2 on Azure Linux 3.0, Microsoft Visual Studio 2026 version 18.9, Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)
Fixed versions3.44.0-3, 18.9.3, 17.14.40, 16.11.60
Vendor guidance

CBL-Mariner Releases Release Notes

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Start with the vendor's bulletin.

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