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Vendor advisories

Microsoft Security Response Center

Browse 17,705 advisories from this official source. Search by product, CVE, severity, or advisory ID.

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17,705 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-2026-44802
HighCVSS 7.8

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 versions10.0.17763.8880, 10.0.20348.5256, 10.0.19044.7417, 10.0.19045.7417
Vendor guidance

Install KB5094123. Install KB5094128. Install KB5094127. Install KB5094125. Install KB5094126. Install KB5093998. Install KB5095051.

CVE-2026-44802
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-42910
HighCVSS 7.8

Windows Hotpatch Monitoring Service Elevation of Privilege Vulnerability

Out-of-bounds write in Windows Hotpatch Monitoring Service 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 versions10.0.26100.32995, 10.0.26200.8655, 10.0.26100.8655, 10.0.28000.2269
Vendor guidance

Install KB5094125. Install KB5094126. Install KB5095051.

CVE-2026-42910
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Microsoft Security Response CenterCVE-2026-50219
LowCVSS 4.9

libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_ParserFree, or XML_ParserReset from within handlers in cases of a policy violation. Thus, a use-after-free can occur,

Mariner

Affected productsazl3 expat 2.6.4-6 on Azure Linux 3.0
Fixed versions2.8.2-1
Vendor guidance

CBL-Mariner Releases

CVE-2026-50219
Read the vendor advisory Watch this product
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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