check before: 2025-10-23
Product:
Windows, Windows Server
Platform:
Online, Web, World tenant
Status:
Change type:
Admin impact
Links:
Details:
Microsoft has identified a remote code execution (RCE) vulnerability in the Windows Server Update Services (WSUS) reporting web service. Windows servers that do not have the WSUS server role enabled are not vulnerable to this vulnerability. For more information about the security fix, see CVE-2025-59287.
An out-of-band (OOB) update was released today, October 23, 2025, to address this issue. This is a cumulative update, so you do not need to apply any previous updates before installing this update, as it supersedes all previous updates for affected versions. If you haven't installed the October 2025 Windows security update yet, we recommend you apply this OOB update instead. After you install the update you will need to reboot your system.
If you have not yet deployed the October 2025 Windows security update and your IT environment includes devices running on the versions of Windows listed below, we recommend you apply this OOB update instead:
Windows Server 2025 (KB5070881)
Windows Server, version 23H2 (KB5070879)
Windows Server 2022 (KB5070884)
Windows Server 2019 (KB5070883)
Windows Server 2016 (KB5070882)
Windows Server 2012 R2 (KB5070886)
Windows Server 2012 (KB5070887)
Change Category:
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Scope:
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Release Phase:
Created:
2025-10-24
updated:
2025-10-24
Task Type
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Docu to Check
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MS Preperations
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MS Urgency
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MS workload name
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summary for non-techies**
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Direct effects for Operations**
System Downtime
Immediate reboot required after the update may lead to unexpected downtime, affecting user access to services.
- roles: System Administrator, End User
- references: https://support.microsoft.com/help/5070879, https://support.microsoft.com/help/5070881
Service Disruption
Out-of-band updates can disrupt ongoing services if not scheduled properly, leading to user frustration and productivity loss.
- roles: IT Operations Manager, End User
- references: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287, https://support.microsoft.com/help/5070884
Compatibility Issues
Potential compatibility issues with existing applications post-update may arise, impacting user experience and functionality.
- roles: Application Support Specialist, End User
- references: https://support.microsoft.com/help/5070882, https://support.microsoft.com/help/5070883
Increased Support Tickets
Unprepared updates may lead to an increase in support tickets from users experiencing issues, straining IT resources.
- roles: Help Desk Technician, IT Support Manager
- references: https://support.microsoft.com/help/5070886, https://support.microsoft.com/help/5070887
Security Risks
If the update is not applied promptly, systems remain vulnerable to the identified RCE vulnerability, risking data breaches.
- roles: Security Analyst, System Administrator
- references: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287, https://support.microsoft.com/help/5070881
Configutation Options**
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Opportunities**
Enhanced Security Posture
Implementing the OOB update promptly will significantly reduce the risk of remote code execution vulnerabilities, thereby enhancing the overall security posture of the organization. This proactive approach can prevent potential data breaches and security incidents.
- next-steps: Schedule a maintenance window for the update deployment and communicate with all relevant stakeholders about the planned reboot and potential downtime.
- roles: IT Security Manager, System Administrator, Network Administrator
- references: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287, https://support.microsoft.com/help/5070879
Streamlined Update Management Process
Adopting a standardized procedure for applying out-of-band updates can streamline the update management process, ensuring that critical vulnerabilities are addressed promptly without disrupting regular operations.
- next-steps: Develop a checklist for OOB updates and train IT staff on the new procedures, ensuring quick and efficient response to future vulnerabilities.
- roles: IT Operations Manager, System Administrator, Help Desk Staff
- references: https://support.microsoft.com/help/5070881, https://support.microsoft.com/help/5070882
Improved Communication Channels
Enhancing communication channels between IT and other departments regarding urgent updates will foster a culture of security awareness and ensure that all stakeholders are informed and prepared for necessary actions, such as reboots.
- next-steps: Establish a regular communication protocol for updates and security advisories, including email notifications and status updates on an internal portal.
- roles: IT Manager, Communications Officer, Department Heads
- references: https://support.microsoft.com/help/5070883, https://support.microsoft.com/help/5070884
Potentional Risks**
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IT Security**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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