About Us

Compumaster has been servicing Home and Small to Medium sized businesses for over 23 years. We are a local owned and operated business right on the main street in Georgetown servicing the Halton Region and Southern Ontario. There is no computer/security issue we can't resolve. We warranty our work and we explain everything in plain English (no tech talk) so you understand what is being done. Our goal is to educate our clients on how to maintain security and safety on line one computer at a time. Come in anytime and get some straight talk on your needs.

Threats/Scams

Jenkins security advisory (AV25-826)
Serial number:AV25-826
Date:December 10, 2025

On December 10, 2025, Jenkins published a security advisory to address vulnerabilities in the following products:

BlazeMeter – version 4.27

Coverage – version 2.3054.ve1ff7b_a_a_123b_ and prior

Git client – version 6.4.0 and prior

HashiCorp Vault – version 371.v884a_4dd60fb_6 and prior

Redpen - Pipeline Reporter for Jira – version 1.054.v7b_9517b_6b_202 and prior

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.

Jenkins Security Advisory 2025-12-10

Jenkins Security Advisories
[Control systems] Schneider Electric security advisory (AV25-825)
Serial number:AV25-825
Date:December 10, 2025

On December 9, 2025, Schneider Electric published advisories to address vulnerabilities in the following products:

EcoStruxure™ Foxboro DCS – version EcoStruxure™ Foxboro DCS and prior

V91 DCS Virtualization Server and H92 DCS Standard Workstation – version Intel Xeon W-2123 and prior

EcoStruxure™ Foxboro DCS Advisor services with Windows Server Update Services application running on MS Server 2016 – version Microsoft updates KB5066836

EcoStruxure™ Foxboro DCS Advisor services with Windows Server Update Services application running on MS Server 2022 – version Microsoft updates KB5066782

The Cyber Centre encourages users and administrators to review the provided web links, perform the suggested mitigations and apply the necessary updates.

EcoStruxure™ Foxboro DCS (PDF)

EcoStruxure™ Foxboro DCS Advisor (PDF)

Schneider Electric Security Notifications
Ivanti security advisory (AV25-824)
Serial number:AV25-824
Date:December 10, 2025

On December 9, 2025, Ivanti published a security advisory to address vulnerabilities in the following product. Included was a critical update for the following:

Ivanti Endpoint Manager – version 2024 SU4 and prior

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.

Security Advisory EPM December 2025 for EPM 2024

Ivanti Security Advisories
Adobe security advisory (AV25-823)
Serial number:AV25-823
Date:December 10, 2025

On December 9, 2025, Adobe published security advisories to address vulnerabilities in the following products:

ColdFusion 2025 – version Update 4 and prior

ColdFusion 2023 – version Update 16 and prior

ColdFusion 2021 – version Update 22 and prior

Adobe Experience Manager (AEM) – version AEM Cloud Service (CS)

Adobe Experience Manager (AEM) – version 6.5 LTS, version 6.5.23 and prior

Adobe DNG Software Development Kit (SDK) – version DNG SDK 1.7.0 and prior

Acrobat DC – version 25.001.20982 and prior

Acrobat Reader DC – version 25.001.20982 and prior

Acrobat 2024 (Windows) – version 24.001.30264 and prior

Acrobat 2024 (Mac) – version 24.001.30273 and prior

Acrobat 2020 (Windows) – version 20.005.30793 and prior

Acrobat 2020 (Mac) – version 20.005.30803 and prior

Acrobat Reader 2020 (Windows) – version 20.005.30793 and prior

Acrobat Reader 2020 (Mac) – version 20.005.30803 and prior

Creative Cloud Desktop Application – version 6.4.0.361 and prior

The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.

Adobe Security Advisories
Microsoft security advisory – December 2025 monthly rollup (AV25-822)
Serial number:AV25-822
Date:December 9, 2025

On December 9, 2025, Microsoft published security advisories to address vulnerabilities in multiple products. Included were critical updates for the following products:

Azure App Gateway

Azure Bastion Developer

Azure Monitor

Azure Monitor Control Service

Dynamics 365 Field Service (online)

Dynamics OmniChannel SDK Storage Containers

Microsoft 365 Apps for Enterprise

Microsoft 365 Defender Portal

Microsoft Configuration Manager 2403

Microsoft Configuration Manager 2409

Microsoft Configuration Manager 2503

Microsoft Dynamics 365

Microsoft Excel 2016

Microsoft Office 2016

Microsoft Office 2019

Microsoft Office LTSC 2021

Microsoft Office LTSC 2024

Microsoft Office LTSC for Mac 2021

Microsoft Office LTSC for Mac 2024

Microsoft Office for Android

Microsoft SQL Server 2016

Microsoft SQL Server 2017

Microsoft SQL Server 2019

Microsoft SQL Server 2022

Microsoft SharePoint Enterprise Server 2016

Microsoft SharePoint Online

Microsoft SharePoint Server 2019

Microsoft SharePoint Server Subscription Edition

Microsoft Visual Studio 2022 version 17.14

Microsoft Visual Studio Code CoPilot Chat Extension

Nuance PowerScribe 360

Nuance PowerScribe One

Office Online Server

OneDrive for Android

PowerScribe One version 2023.1 SP2 Patch 7

Visual Studio Code

Windows 10

Windows 10 Version 1607

Windows 10 Version 1809

Windows 10 Version 21H2

Windows 10 Version 22H2

Windows 11 Version 22H2

Windows 11 Version 23H2

Windows 11 Version 24H2

Windows 11 Version 25H2

Windows Server 2008

Windows Server 2012

Windows Server 2012 R2

Windows Server 2016

Windows Server 2019

Windows Server 2022

Windows Server 2025

Windows Server 2025 (Server Core installation)

Windows Subsystem for Linux GUI

Microsoft has received reports that CVE-2025-62221 is being exploited.

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.

December 2025 Security Updates

Security Update Guide
Fortinet security advisory (AV25-821)
Serial number:AV25-821
Date:December 9, 2025

On December 9, 2025, Fortinet published security advisories to address vulnerabilities in multiple products including one critical vulnerability.

FortiCloud SSO Login Authentication Bypass affecting the following products: FortiOS, FortiWeb, FortiProxy and FortiSwitchManager.
(CVE-2025-59718, CVE-2025-59719)

The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.

Critical vulnerability: FortiCloud SSO Authentication Bypass

Fortinet PSIRT Advisories