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Black Arrow Cyber Advisory 14 June 2023 – June Microsoft Patch Tuesday Addresses 78 Security Issues, 6 Critical Updates

Executive summary

Microsoft’s June Patch Tuesday provides updates to address 78 security issues across its product range, including 6 critical vulnerabilities. June’s patch Tuesday does not include any zero-day vulnerabilities or actively exploited bugs. The critical vulnerabilities include privilege escalation in Microsoft SharePoint, remote code execution in Microsoft Exchange Server, Windows PGM, .NET, .NET Framework and Visual Studio and finally, a denial of service in Windows Hyper-V.

What’s the risk to me or my business?

The vulnerabilities, if actively exploited allow an attacker to gain system privileges, remotely execute code and cause a denial of service compromising the confidentiality, integrity and availability of data stored by an organisation.

What can I do?

Security updates are available for all supported versions of Windows impacted. The updates should be applied as soon as possible, especially those that have a critical severity rating.


Further details on other specific updates within this patch Tuesday can be found here: https://www.ghacks.net/2023/06/13/the-windows-june-2023-security-patches-are-here-and-address-these-issues/

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