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-2026-95904
HighCVSS 5.5

Windows Event Logging Service Information Disclosure Vulnerability

Buffer over-read in Windows Event Logging Service 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-2026-94520
HighCVSS 4.9

Microsoft SQL Server Denial of Service Vulnerability

Use of externally-controlled format string in SQL Server allows an authorized attacker to deny service over a network.

Affected productsMicrosoft SQL Server 2017 for x64-based Systems (CU31), Microsoft SQL Server 2022 for x64-based Systems (GDR), Microsoft SQL Server 2019 for x64-based Systems (CU32), Microsoft SQL Server 2017 for x64-based Systems (GDR)
Fixed versions14.0.3560.2, 16.0.1210.3, 15.0.4500.2, 14.0.2140.2
Vendor guidance

Install KB5128496. Install KB5128493. Install KB5128494. Install KB5128497. Install KB5128495. Install KB5126934. Install KB5128492. Install KB5126967.

Microsoft Security Response CenterCVE-2026-94512
HighCVSS 8.8

SQL Server Remote Code Execution Vulnerability

Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.

Affected productsMicrosoft SQL Server 2022 for x64-based Systems (CU27), Microsoft SQL Server 2025 for x64-based Systems (CU9), Microsoft SQL Server 2017 for x64-based Systems (GDR), Microsoft SQL Server 2019 for x64-based Systems (GDR)
Fixed versions16.0.4305.5, 17.0.5015.4, 14.0.2140.2, 15.0.2200.2
Vendor guidance

Install KB5126934. Install KB5126967. Install KB5128497. Install KB5128495. Install KB5128493. Install KB5128492. Install KB5128496. Install KB5128494.

Microsoft Security Response CenterCVE-2026-94506
HighCVSS 6.5

Microsoft Office Access Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Access allows an unauthorized attacker to disclose information 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-2026-88226
HighCVSS 4.6

Windows Storage Port Driver Information Disclosure Vulnerability

Out-of-bounds read in Windows Storage Port Driver allows an unauthorized attacker to disclose information with a physical attack.

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-2026-88219
HighCVSS 8.8

RPC Runtime Library Remote Code Execution Vulnerability

Untrusted pointer dereference in RPC Runtime allows an unauthorized attacker to execute code over a network.

Affected productsWindows Server 2025 (Server Core installation), Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows Server 2012
Fixed versions10.0.26100.33650, 10.0.28000.3231, 6.2.9200.26434, 6.3.9600.23470
Vendor guidance

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

Microsoft Security Response CenterCVE-2026-88209
HighCVSS 4.6

Microsoft Office SharePoint Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

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

Install KB5002927.

Microsoft Security Response CenterCVE-2026-88208
HighCVSS 4.6

Microsoft Office SharePoint Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

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

Install KB5002927.

Microsoft Security Response CenterCVE-2026-88204
HighCVSS 7.3

Microsoft Office SharePoint Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

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

Install KB5002927.

Microsoft Security Response CenterCVE-2026-88203
HighCVSS 6.5

Microsoft Office PowerPoint Information Disclosure Vulnerability

Untrusted pointer dereference in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information 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-2026-88201
HighCVSS 6.5

Microsoft Office Excel Information Disclosure Vulnerability

Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information 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 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions
Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-88195
HighCVSS 6.5

Microsoft Office Excel Information Disclosure Vulnerability

Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information 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 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions
Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-88194
HighCVSS 7.8

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.

Microsoft Security Response CenterCVE-2026-88193
HighCVSS 7.8

Microsoft Scripting Engine Elevation of Privilege Vulnerability

Heap-based buffer overflow in Microsoft Scripting Engine 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.

Microsoft Security Response CenterCVE-2026-88191
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 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.

Microsoft Security Response CenterCVE-2026-88190
HighCVSS 6.5

Microsoft Office Excel Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information 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 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions
Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-88189
HighCVSS 7.8

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.

Microsoft Security Response CenterCVE-2026-88188
HighCVSS 7.8

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.

Microsoft Security Response CenterCVE-2026-88182
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 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.

Microsoft Security Response CenterCVE-2026-88181
HighCVSS 7.8

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 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.

Microsoft Security Response CenterCVE-2026-88180
HighCVSS 7.8

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 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.

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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