CVE-2026-21238 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Improper access control in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.


CVE-2026-21256 GitHub Copilot and Visual Studio Remote Code Execution Vulnerability

Changes made to the security updates links and information. This is an informational change only.


CVE-2026-21511 Microsoft Outlook Spoofing Vulnerability

Acknowledgement added. This is an informational change only.


CVE-2026-21255 Windows Hyper-V Security Feature Bypass Vulnerability

Improper access control in Windows Hyper-V allows an authorized attacker to bypass a security feature locally.


CVE-2026-21228 Azure Local Remote Code Execution Vulnerability

Improper certificate validation in Azure Local allows an unauthorized attacker to execute code over a network.


Chromium: CVE-2026-1862 Type Confusion in V8

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see [Google Chrome Releases](https://chromereleases.googleblog.com/2024 ) for more information.


Chromium: CVE-2026-1861 Heap buffer overflow in libvpx

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see [Google Chrome Releases](https://chromereleases.googleblog.com/2024 ) for more information.


CVE-2026-0391 Microsoft Edge (Chromium-based) for Android Spoofing Vulnerability

User interface (ui) misrepresentation of critical information in Microsoft Edge for Android allows an unauthorized attacker to perform spoofing over a network.


CVE-2026-24300 Azure Front Door Elevation of Privilege Vulnerability

Information published.


CVE-2026-21532 Azure Function Information Disclosure Vulnerability

Information published.


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