Microsoft issued an urgent warning on Tuesday about an actively exploited code execution vulnerability in a Windows component used for system configuration and monitoring.

The zero-day, tagged as CVE-2024-43572, is documented as a remote code execution issue in Microsoft Management Console (MMC), an oft-targeted component of the Windows operating system.

Redmond’s security response team warned that attackers are leveraging malicious Microsoft Saved Console (MSC) files to execute remote code on targeted Windows systems. 

The flaw carries a CVSS severity score of 7.8/10 and headlines a hefty Patch Tuesday rollout to cover at least 119 documented vulnerabilities through the Windows ecosystem.

As is customary, Microsoft did not share IOCs (indicators of compromise) or any other telemetry data to help defenders to hunt for signs of infections.

This is the 23rd time this year Microsoft is forced to respond to zero-day exploitation prior to the availability of patches.

The October batch of patches also cover critical-severity flaws in the Visual Studio Code extension for Arduino, the Remote Desktop Protocol Server, and the Microsoft Configuration Manager.  All these vulnerabilities are documented as “remote code execution” issues.

Microsoft also flagged CVE-2024-43573 for urgent attention, warning that a flaw in the Windows MSHTML platform is also in the “exploitation detected” category.

The MSHTML platform is used by Internet Explorer mode in Microsoft Edge as well as other applications through WebBrowser control and has been regularly targeted by ransomware and nation-state APT hacking teams.

The world’s largest software maker also urged Windows users to prioritize fixes for remote code execution bugs in the Microsoft Configuration Manager (CVE-2024-43468) and Remote Desktop Protocol Server (CVE-2024-43582) components.

The company also pushed out patches for several publicly-known issues, including a Winlogon privilege escalation flaw (CVE-2024-43583), a Windows Hyper-V security feature bypass bug (CVE-2024-20659), and a code execution problem in the Windows cURL implementation.

Separately on Patch Tuesday, Adobe released urgent patches to fix security defects in multiple product lines and warned of code execution risks on Windows and macOS platforms.

The Adobe rollout includes a critical-severity bulletin documenting 25 vulnerabilities in Adobe Commerce that expose businesses to  code execution, privilege escalation, and security feature bypass attacks. Two of the 25 vulnerabilities carry a CVSS severity score of 9.8/10.

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