High Threat Security Alert (A23-02-13): Multiple Vulnerabilities in Microsoft Products (February 2023)
15 February 2023
Microsoft has released security updates addressing multiple vulnerabilities which affect several Microsoft products or components. The list of security updates can be found at: https://msrc.microsoft.com/update-guide/releaseNote/2023-Feb
Reports indicated that the vulnerabilities (CVE-2023-21715, CVE-2023-21823 and CVE-2023-23376) in Microsoft Windows and Server as well as Microsoft Office are being exploited in the wild. In addition, multiple remote code execution vulnerabilities (CVE-2023-21689, CVE-2023-21690, CVE-2023-21692, CVE-2023-21716 and CVE-2023-21803) are also at a high risk of exploitation. System administrators and users are advised to take immediate action to patch your affected systems to mitigate the elevated risk of cyber attacks.
Microsoft Windows 10, 11
Microsoft Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016, 2019, 2022
Microsoft Exchange Server 2013, 2016, 2019
Microsoft Office 2019 for Mac, LTSC 2021, LTSC for Mac 2021
Microsoft Office for Android, for iOS, for Universal
Microsoft Office Online Server
Microsoft Office Web Apps Server 2013
Microsoft Word 2013, 2013 RT, 2016
Microsoft 365 Apps for Enterprise
Microsoft Dynamics 365 (on-premises) version 9.0, 9.1
Microsoft Dynamics 365 Unified Service Desk
Microsoft SharePoint Foundation 2013
Microsoft SharePoint Enterprise Server 2013, 2016
Microsoft SharePoint Server 2019, Subscription Edition
SharePoint Server Subscription Edition Language Pack
Depending on the vulnerability exploited, a successful attack could lead to remote code execution, denial of service, elevation of privilege, information disclosure, security feature bypass and spoofing.
Patches for affected products are available from the Windows Update / Microsoft Update Catalog. System administrators and users of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk.