Vendor advisories

Microsoft Security Response Center

Browse 15,972 advisories from this official source. Search by product, CVE, severity, or advisory ID.

Current Checked about an hour ago Checked every 6 hours

15,972 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-2026-64903
CriticalCVSS 7.8

Microsoft Office Remote Code Execution Vulnerability

Integer overflow or wraparound in Microsoft Office 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, 16.112.26081010, 16.0.5565.1001
Vendor guidance

Click to Run Release Notes Install KB5002897.

Microsoft Security Response CenterCVE-2026-58547
HighCVSS 5.5

Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Vulnerability

Heap-based buffer overflow in Universal Plug and Play (upnp.dll) 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649.

Microsoft Security Response CenterCVE-2026-50466
HighCVSS 7.8

Microsoft Brokering File System Elevation of Privilege Vulnerability

Use after free in Windows Brokering File System 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 x64-based Systems
Fixed versions10.0.26100.33158, 10.0.26200.8875, 10.0.26100.8875, 10.0.28000.2525
Vendor guidance

Install KB5099536. Install KB5101650. Install KB5101649.

Microsoft Security Response CenterCVE-2026-32202
HighCVSS 4.3

Windows Shell Spoofing Vulnerability

Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5099414. Install KB5099535. Install KB5099445. Install KB5099444. Install KB5101649.

Microsoft Security Response CenterCVE-2026-68801
HighCVSS 7.8

Microsoft Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Affected productsMicrosoft Office 365 for Mac, Office Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions
Fixed versions16.112.26081010, 16.0.10417.20175, https://aka.ms/OfficeSecurityReleases, 16.0.5565.1001
Vendor guidance

Release Notes Click to Run Install KB5002884. Install KB5002903.

Microsoft Security Response CenterCVE-2026-76035
Severity not listed

Chromium: CVE-2026-76035 Inappropriate implementation in Media

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

Affected productsMicrosoft Edge (Chromium-based)
Fixed versions151.0.4129.101
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-54118
CriticalCVSS 9.8

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 2016 for x64-based Systems Service Pack 3 Azure Connect Feature Pack, Microsoft SQL Server 2019 for x64-based Systems (GDR), Microsoft SQL Server 2022 for x64-based Systems (GDR), Microsoft SQL Server 2017 for x64-based Systems (CU 31)
Fixed versions13.0.7095.1, 15.0.2180.2, 16.0.1190.2, 14.0.3540.1
Vendor guidance

Install KB5102339. Install KB5102336. Install KB5102334. Install KB5102337. Install KB5102335. Install KB5101347. Install KB5102333. Install KB5101346. Install KB5102340. Install KB5102338.

Microsoft Security Response CenterCVE-2026-54117
CriticalCVSS 9.8

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 2025 for x64-based Systems (GDR), Microsoft SQL Server 2025 for x64-based Systems (CU6)
Fixed versions17.0.1125.2, 17.0.4060.2
Vendor guidance

Install KB5102333. Install KB5101346.

Microsoft Security Response CenterCVE-2026-33824
CriticalCVSS 9.8

Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability

Double free in Windows IKE Extension 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 versions10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

The following mitigating factors might be helpful in your situation: Customers who cannot immediately install the security update can take one of the following actions, depending on their environment: Block inbound tr...

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.

How we check our sources