#Security Vulnerability

Improper privilege management in Microsoft Office SharePoint allows an authorized attacker to elevate privileges locally.

Improper access control in Azure File Sync allows an authorized attacker to elevate privileges locally.

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

**How can I verify that the update is installed?** Customers wanting to ensure the client has been updated can run the MDE Client Analyzer on the device. When running the analyzer on a Windows device that does not have the security update, the analyzer will present a warning (ID 121035) indicating missing patch and directing to relevant online article. Additionally, if the update is installed, but the Anti-Spoofing capability is not in a stable state, the analyzer will present warning (ID 121036) indicating an issue and providing additional online guidance or callout to reach out to Microsoft support if issue persists.

External control of file name or path in .NET allows an authorized attacker to perform spoofing locally.

**What type of information could be disclosed by this vulnerability?** An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory.

Use of uninitialized resource in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.

Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over a network.

**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**

**Why are there no links to an update or instructions with steps that must be taken to protect from this vulnerability?** This vulnerability has already been fully mitigated by Microsoft. There is no action for users of this service to take. The purpose of this CVE is to provide further transparency. Please see Toward greater transparency: Unveiling Cloud Service CVEs for more information.