Microsoft Security Response Center Blog Alerts

Improper link resolution before file access (‘link following’) in Microsoft Edge (Chromium-based) allows an authorized attacker to elevate privileges locally.

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/2025) for more information. Google is aware of reports that an exploit for CVE-2025-4664 exists in the wild.

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/2025) for more information.

Information published.

Corrected CVE title. This is an informational change only.

Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.

Improper authentication in Microsoft Defender for Identity allows an unauthorized attacker to perform spoofing over an adjacent network.

Access of resource using incompatible type (‘type confusion’) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Improper input validation in Active Directory Certificate Services (AD CS) allows an authorized attacker to deny service over a network.

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