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#Microsoft Edge (Chromium-based)

CVE-2025-59251: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

**What is the version information for this release?** Microsoft Edge Version Date Released Based on Chromium Version 140.0.3485.81 09/19/2025 140.0.7339.186

Microsoft Security Response Center
#vulnerability#microsoft#rce#chrome#Microsoft Edge (Chromium-based)#Security Vulnerability
CVE-2025-10501: Chromium: CVE-2025-10501 Use after free in WebRTC

**What is the version information for this release?** Microsoft Edge Version Date Released Based on Chromium Version 140.0.3485.81 09/19/2025 140.0.7339.186

CVE-2025-10502: Chromium: CVE-2025-10502 Heap buffer overflow in ANGLE

**What is the version information for this release?** Microsoft Edge Version Date Released Based on Chromium Version 140.0.3485.81 09/19/2025 140.0.7339.186

CVE-2025-10500: Chromium: CVE-2025-10500 Use after free in Dawn

**What is the version information for this release?** Microsoft Edge Version Date Released Based on Chromium Version 140.0.3485.81 09/19/2025 140.0.7339.186

CVE-2025-10585: Chromium: CVE-2025-10585 Type Confusion in V8

**What is the version information for this release?** Microsoft Edge Version Date Released Based on Chromium Version 140.0.3485.81 09/19/2025 140.0.7339.186

CVE-2025-10201: Chromium: CVE-2025-10201 Inappropriate implementation in Mojo

**What is the version information for this release?** Microsoft Edge Version Date Released Based on Chromium Version 140.0.3485.66 09/11/2025 140.0.7339.133

CVE-2025-10200: Chromium: CVE-2025-10200 Use after free in Serviceworker

**What is the version information for this release?** Microsoft Edge Version Date Released Based on Chromium Version 140.0.3485.66 09/11/2025 140.0.7339.133

CVE-2025-9867: Chromium: CVE-2025-9867 Inappropriate implementation in Downloads

**Why is this Chrome CVE included in the Security Update Guide?** The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable. **How can I see the version of the browser?** 1. In your Microsoft Edge browser, click on the 3 dots (...) on the very right-hand side of the window 2. Click on **Help and Feedback** 3. Click on **About Microsoft Edge**

CVE-2025-9866: Chromium: CVE-2025-9866 Inappropriate implementation in Extensions

**Why is this Chrome CVE included in the Security Update Guide?** The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable. **How can I see the version of the browser?** 1. In your Microsoft Edge browser, click on the 3 dots (...) on the very right-hand side of the window 2. Click on **Help and Feedback** 3. Click on **About Microsoft Edge**

CVE-2025-9865: Chromium: CVE-2025-9865 Inappropriate implementation in Toolbar

**Why is this Chrome CVE included in the Security Update Guide?** The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable. **How can I see the version of the browser?** 1. In your Microsoft Edge browser, click on the 3 dots (...) on the very right-hand side of the window 2. Click on **Help and Feedback** 3. Click on **About Microsoft Edge**