MSRC Reports
61 subscribers
2.97K links
Microsoft Security Response Center Reports
(Unofficial).

Reports usually come in bursts, because that's just how Microsoft releases them.
Download Telegram
CVE-2026-26030 GitHub: CVE-2026-26030 Microsoft Semantic Kernel InMemoryVectorStore filter functionality vulnerable

Acknowledgement added. This is an informational change only.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26030
CVE-2026-20841 Windows Notepad App Remote Code Execution Vulnerability

To comprehensively address CVE-2026-20841, Microsoft has released February 2026 security updates for the Windows Notepad App. Microsoft recommends that customers install the update to be fully protected from the vulnerability.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20841
CVE-2026-3805 use after free in SMB connection reuse

Information published.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3805
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.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21256
CVE-2026-21257 GitHub Copilot and Visual Studio Elevation of Privilege Vulnerability

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

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21257
CVE-2026-25172 Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

The hotpatch has been re‑released to ensure comprehensive coverage across all affected scenarios. Customers are advised to apply the updated release to ensure full protection.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25172
CVE-2026-25173 Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

The hotpatch has been re‑released to ensure comprehensive coverage across all affected scenarios. Customers are advised to apply the updated release to ensure full protection.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25173
CVE-2026-26111 Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

The hotpatch has been re‑released to ensure comprehensive coverage across all affected scenarios. Customers are advised to apply the updated release to ensure full protection.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26111
Chromium: CVE-2026-3930 Unsafe navigation in Navigation

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/2021) for more information.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3930
CVE-2026-0385 Microsoft Edge (Chromium-based) for Android Spoofing Vulnerability

Information published.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-0385
Chromium: CVE-2026-3913 Heap buffer overflow in WebML

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/2021) for more information.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3913
Chromium: CVE-2026-3914 Integer overflow in WebML

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/2021) for more information.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3914
Chromium: CVE-2026-3916 Out of bounds read in Web Speech

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/2021) for more information.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3916
Chromium: CVE-2026-3917 Use after free in Agents

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/2021) for more information.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3917
Chromium: CVE-2026-3918 Use after free in WebMCP

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/2021) for more information.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3918
Chromium: CVE-2026-3919 Use after free in Extensions

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/2021) for more information.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3919
Chromium: CVE-2026-3920 Out of bounds memory access in WebML

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/2021) for more information.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3920
Chromium: CVE-2026-3921 Use after free in TextEncoding

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/2021) for more information.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3921
Chromium: CVE-2026-3922 Use after free in MediaStream

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/2021) for more information.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3922
Chromium: CVE-2026-3923 Use after free in WebMIDI

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/2021) for more information.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3923