Overview

On August 13, NSFOCUS CERT detected that Microsoft released the August Security Update patch, which fixed 111 security issues involving widely used products such as Windows, Microsoft Office, Microsoft SQL Server, Visual Studio, and Microsoft Exchange Server. These include high-risk vulnerability types such as privilege escalation and remote code execution.

Among the vulnerabilities fixed by Microsoft’s monthly update this month, there are 17 critical vulnerabilities, 91 important vulnerabilities, and 2 moderate vulnerabilities.

Users should update the patch as soon as possible for protection. For a complete list of vulnerabilities, please refer to the appendix.

Reference link: https://msrc.microsoft.com/update-guide/en-us/releaseNote/2025-Aug

Key Vulnerabilities

Based on the product popularity and vulnerability importance, this update contains vulnerabilities with greater impact. Relevant users are requested to pay special attention to:

Windows Graphics Component Remote Code Execution Vulnerability (CVE-2025-50165):

A remote code execution vulnerability exists in the Windows Graphics Component, which allows an unauthenticated attacker to remotely execute code on the target system through a specially crafted JPEG image (which can be embedded in Office or other files) due to untrusted pointer dereferences in Microsoft Graphics Component. CVSS score is 9.8.

Official announcement link:

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-50165

Windows GDI Remote Code Execution Vulnerability (CVE-2025-53766):

A remote code execution vulnerability exists in Windows GDI. Due to a heap-based buffer overflow in Windows GDI+, an unauthenticated attacker can execute arbitrary code by tricking the user into downloading and opening a document containing a specially crafted metafile. CVSS score is 9.8.

Official announcement link:

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-53766

Microsoft SharePoint Remote Code Execution Vulnerability (CVE-2025-49712):

A remote code execution vulnerability exists in Microsoft SharePoint, which allows an authenticated remote attacker to execute arbitrary code due to the deserialization of untrusted data in Microsoft Office SharePoint. CVSS score is 8.8.

Official announcement link:

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-49712

Microsoft Word Remote Code Execution Vulnerability (CVE-2025-53733):

A remote code execution vulnerability exists in Microsoft Word. Due to improper number type conversion in Microsoft Office Word, an unauthenticated attacker can execute arbitrary code in the user’s context by crafting a malicious file that tricks the user into opening or previewing a pane. CVSS score is 8.4.

Official announcement link:

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-53733

Windows NTLM Privilege Escalation Vulnerability (CVE-2025-53778):

A privilege escalation vulnerability exists in Windows NTLM, which can be exploited by an authenticated local attacker to gain system SYSTEM privileges due to improper authentication in Windows NTLM. CVSS score is 8.8.

Official announcement link:

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-53778

Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability (CVE-2025-50177):

A remote code execution vulnerability exists in Microsoft Message Queues (MSMQ). Due to the Use-After-Free nature of Windows message queues, an unauthenticated attacker can achieve remote code execution on the target server by sending a batch of specially crafted HTTP packets to the MSMQ server for race conditions.

Official announcement link:

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-50177

Microsoft SQL Server Privilege Escalation Vulnerability (CVE-2025-24999):

There is a privilege escalation vulnerability in Microsoft SQL Server. Due to improper access control of SQL Server, an authenticated attacker can obtain sysadmin permissions on the target system through the network. CVSS score is 8.8.

Official announcement link:

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-24999

Azure Portal Privilege Escalation Vulnerability (CVE-2025-53792):

There is a privilege escalation vulnerability in the Azure portal. Due to improper authorization in the Azure Windows virtual machine agent, an unauthenticated attacker can escalate privileges through the network. CVSS score is 9.1.

Official announcement link:

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-53792

Remote Desktop Spoofing Vulnerability (CVE-2025-50171):

There is a spoofing vulnerability in Remote Desktop. Due to the lack of authorization from the remote desktop server, an unauthenticated attacker can perform spoofing attacks on the network. CVSS score is 9.1.

Official announcement link:

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-50171

Scope of Impact

The following are the affected product versions of some key vulnerabilities. For the scope of products affected by other vulnerabilities, please refer to the official announcement link.

Mitigation

Patch update

At present, Microsoft has officially released security patches to fix the above vulnerabilities for supported product versions. It is strongly recommended that affected users install patches as soon as possible for protection. The official download link: https://msrc.microsoft.com/update-guide/en-us/releaseNote/2025-Aug

Note: Patch updates for Windows Update may fail due to network problems, computer environment problems, etc. After installing the patch, users should check whether the patch has been successfully updated in time.

Right-click the Windows icon, select “Settings (N)”, select “Update and Security”- “Windows Update”, view the prompt information on this page, or click “View Update History” to view the historical update status.

For updates that have not been successfully installed, you can click the update name to jump to the Microsoft official download page. It is recommended that users click the link on this page and go to the “Microsoft Update Catalog” website to download the independent program package and install it.

Appendix: Vulnerability List

Statement

This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and/or indirect consequences and losses caused by transmitting and/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add/delete any information to/from it, or use this advisory for commercial purposes without permission from NSFOCUS.

About NSFOCUS

NSFOCUS, a pioneering leader in cybersecurity, is dedicated to safeguarding telecommunications, Internet service providers, hosting providers, and enterprises from sophisticated cyberattacks.

Founded in 2000, NSFOCUS operates globally with over 4000 employees at two headquarters in Beijing, China, and Santa Clara, CA, USA, and over 50 offices worldwide. It has a proven track record of protecting over 25% of the Fortune Global 500 companies, including four of the five largest banks and six of the world’s top ten telecommunications companies.

Leveraging technical prowess and innovation, NSFOCUS delivers a comprehensive suite of security solutions, including the Intelligent Security Operations Platform (ISOP) for modern SOC, DDoS Protection, Continuous Threat Exposure Management (CTEM) Service and Web Application and API Protection (WAAP). All the solutions and services are augmented by the Security Large Language Model (SecLLM), ML, patented algorithms and other cutting-edge research achievements developed by NSFOCUS.

The post Microsoft’s August Security Update High-Risk Vulnerability Notice for Multiple Products appeared first on NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks..

*** This is a Security Bloggers Network syndicated blog from NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks. authored by NSFOCUS. Read the original post at: https://nsfocusglobal.com/microsofts-august-security-update-high-risk-vulnerability-notice-for-multiple-products/