Microsoft September 2025 Patch Tuesday fixes 81 flaws, two zero-days

Source: BleepingComputer

Author: Lawrence Abrams

URL: https://www.bleepingcomputer.com/news/microsoft/microsoft-september-2025-patch-tuesday-fixes-81-flaws-two-zero-days/

ONE SENTENCE SUMMARY:

The document outlines significant Azure and Microsoft vulnerabilities across different services, with varying severity levels, requiring urgent attention.

MAIN POINTS:

1. Azure Networking, Arc, Bot Service, and Entra have critical elevation of privilege vulnerabilities.
2. Graphics Kernel features multiple remote code execution vulnerabilities marked as critical.
3. Microsoft Office components are affected by various important vulnerabilities, mainly remote code execution.
4. Windows Hyper-V roles face numerous important elevation of privilege vulnerabilities.
5. Windows Defender Firewall Service is affected by several important elevation of privilege vulnerabilities.
6. Win32K and SMB are linked to critical vulnerabilities requiring immediate action.
7. Xbox-associated services contain critical information disclosure and elevation of privilege vulnerabilities.
8. SQL Server and Windows services face multiple information disclosure vulnerabilities.
9. Microsoft Edge presents several vulnerabilities with unknown severity levels.
10. Addressing these vulnerabilities is crucial to prevent exploitation and maintain system security.

TAKEAWAYS:

1. Critical vulnerabilities in Azure Networking, Bot Service, and Entra need immediate remediation.
2. Microsoft Office and Excel require updates to mitigate remote code execution risks.
3. Hyper-V and Defender Firewall are critical areas needing consistent monitoring.
4. Regular updates necessary for Xbox and Windows components due to severe vulnerabilities.
5. Edge maintenance is key despite unknown risks in implementations.