Online Security

Microsoft Issues Patches for In-the-Wild 0-day and 55 Others Windows Bugs

Microsoft on Tuesday issued fixes for 56 flaws, including a critical vulnerability that’s known to be actively exploited in the wild.

In all, 11 are listed as Critical, 43 are listed as Important, and two are listed as Moderate in severity — six of which are previously disclosed vulnerabilities.

The updates cover .NET Framework, Azure IoT, Microsoft Dynamics, Microsoft Edge for Android, Microsoft Exchange Server, Microsoft Office, Microsoft Windows Codecs Library, Skype for Business, Visual Studio, Windows Defender, and other core components such as Kernel, TCP/IP, Print Spooler, and Remote Procedure Call (RPC).

A Windows Win32k Privilege Escalation Vulnerability

The most critical of the flaws is a Windows Win32k privilege escalation vulnerability (CVE-2021-1732, CVSS score 7.8) that allows attackers with access to a target system to run malicious code with elevated permissions. Microsoft credited JinQuan, MaDongZe, TuXiaoYi, and LiHao of DBAPPSecurity for discovering and reporting the vulnerability.

password auditor

In a separate technical write-up, the researchers said a zero-day exploit leveraging the flaw was detected in a “very limited number of attacks” against victims located in…

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