Article
November 2025 Patch Tuesday: Key Vulnerabilities Overview
Introduction
Microsoft’s November 2025 Patch Tuesday addresses 63 vulnerabilities, including one high-priority remote code execution flaw in the Windows graphics component (CVE‑2025‑60724). This update underscores the critical importance of timely patching across Windows client and server environments. Security teams should treat this cycle as essential, focusing their efforts on the most severe fixes while processing the full set of updates.
Summary of November 2025 Patch Tuesday
This month’s Patch Tuesday focuses on addressing vulnerabilities in various Microsoft products, including Windows, Office, and Azure. Notable updates include a fix for a flaw in the Windows Kernel, which could let attackers gain control of your system, and an update to the Azure Monitor Agent to prevent unwanted access. Microsoft addressed 63 vulnerabilities overall, categorizing many as important or critical, which shows the urgency of these fixes. The goal is to protect you from threats like unauthorized access and data leaks.
Understanding these updates is crucial in protecting enterprise environments. Below, we categorize the vulnerabilities based on their exposure to the internet.
Updates are listed according to their CVSS Score
Exposed to internet
November 2025 Patch Tuesday
Internal Network
Exposed to the Internet
Microsoft Graphics Component – Arbitrary Code Execution
The Microsoft Graphics Component deals with rendering graphics and text in Windows. This CVE describes a severe heap-based overflow vulnerability in GDI+, which could be exploited by unauthenticated attackers to execute arbitrary code over a network, making it extremely dangerous with a high CVSS score.
Nuance PowerScribe 360 – Information Disclosure
Nuance PowerScribe 360, known for its radiology reporting and voice recognition features, faces an information disclosure vulnerability. This issue allows unauthorized attackers potential access to sensitive information, which could compromise user data confidentiality.
Azure Monitor Agent – Remote Code Execution
Azure Monitor Agent, vital for collecting and sending data from VMs to Azure, suffers from a remote code execution vulnerability. This flaw is associated with inadequate privilege controls, potentially allowing malicious actors to execute arbitrary code within affected systems.
Internal Network
Windows Kernel – Elevation of Privilege
The Windows Kernel is a crucial part of the Windows operating system, managing system resources and hardware communication. This CVE exploits a race condition within the kernel, allowing attackers to gain system privileges, posing a significant security risk as it enables unauthorized control over the system.
Microsoft Office – Remote Code Execution
Microsoft Office, a staple suite for productivity tasks, is affected by a remote code execution vulnerability. This issue arises from a ‘use-after-free’ error, potentially allowing attackers to exploit it by sending malicious files to users, compromising their system’s security.
Windows Common Log File System Driver – Elevation of Privilege
The Windows Common Log File System (CLFS) allows message logging and tracking. A vulnerability in CLFS can lead to an elevation of privilege, where attackers with local access can execute code with system-level permissions, increasing the risk of a system takeover.
Visual Studio – Remote Code Execution
Visual Studio, an IDE used for application development, is susceptible to a remote code execution vulnerability due to command injection. This vulnerability impacts the build system of Visual Studio, representing a significant threat in software development environments.
Windows DirectX – Elevation of Privilege
DirectX, crucial for multimedia and game programming on Microsoft platforms, is affected by an elevation of privilege vulnerability. This issue exploits a ‘use-after-free’ condition in the DirectX Graphics Kernel, which could allow attackers to gain system-level access.
Microsoft Configuration Manager – Elevation of Privilege
Microsoft’s Configuration Manager manages and deploys applications across organizations. This CVE involves an elevation of privilege vulnerability due to improper access control, which could enable an attacker to gain unauthorized administrative access to manage systems.
Microsoft Dynamics 365 (on-premises) – Information Disclosure
Microsoft Dynamics 365, a suite aiding ERP and CRM processes, is affected by an information disclosure vulnerability. Due to improper data handling, sensitive server data may be exposed, risking user and organizational data privacy.
Conclusion
In summary, keeping your devices updated is crucial. By installing these updates promptly, you reduce your chances of being a target for cyber threats. Ensure your software is set to update automatically, and take a moment to check that your protection tools, like antivirus software, are active and current. Staying vigilant helps keep your personal information and devices safe.
Have questions about implementing these patches or securing your IT environment? Schedule a call with At-Bay’s Advisory Services team to get started.
About CVSS
The Common Vulnerability Scoring System (CVSS) is an industry-standard framework for evaluating and communicating the severity of software vulnerabilities. It provides a numerical score that helps organizations prioritize and address security issues effectively. CVSS scores quantify the severity of a vulnerability on a scale from 0 (no severity) to 10 (critical severity). CVSS considers multiple factors, including; Exploitability, Impact, Exploit code maturity, Remediation level, Report confidence. The system enables organizations to compare and prioritize vulnerabilities based on their potential impact on IT infrastructure.
References
- https://msrc.microsoft.com/update-guide/releasenote/2025-nov
- https://www.zerodayinitiative.com/blog/2025/11/11/the-november-2025-security-update-review
- https://community.spiceworks.com/t/your-nov-2025-patch-tuesday-guide-is-here/1245840
- https://blog.qualys.com/vulnerabilities-threat-research/2025/11/11/microsoft-patch-tuesday-november-2025-security-update-review
- https://www.bleepingcomputer.com/news/microsoft/microsoft-november-2025-patch-tuesday-fixes-1-zero-day-63-flaws/