Vendor advisories

Microsoft Security Response Center

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

Current Checked 4 hours 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-2025-21863
MediumCVSS 7.8

io_uring: prevent opcode speculation

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the mos...

Affected productsazl3 kernel 6.6.82.1-1 on Azure Linux 3.0, azl3 kernel 6.6.78.1-3 on Azure Linux 3.0, cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0, cbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0
Fixed versions6.6.82.1-1
Vendor guidance

CBL-Mariner Releases Release Notes

Microsoft Security Response CenterCVE-2026-81355
CriticalCVSS 7.5

Virtual Hard Disk (VHD) Miniport Driver Remote Code Execution Vulnerability

Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver 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 versions10.0.17763.9245, 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-2025-38491
MediumCVSS 7.0

mptcp: make fallback action and fallback decision atomic

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the mos...

Affected productsazl3 kernel 6.6.96.2-2 on Azure Linux 3.0, cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0, cbl2 kernel 5.15.202.1-1, azl3 kernel 6.6.96.2-1 on Azure Linux 3.0
Fixed versions6.6.104.2-1
Vendor guidance

CBL-Mariner Releases Release Notes

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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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