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Emergency Notice – High-Risk Microsoft Vulnerabilities Impacting Azure, Microsoft 365, Dynamics 365, and More
August 20, 2025
See which products are impacted by these Microsoft vulnerabilities, why it matters, and what you need to do now.
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Preface: This was Enough for India to Place the entire Country on High Alert

On August 18, 2025, India’s national cybersecurity agency, CERT‑In, issued a high‑risk security alert that sent shockwaves throughout the global IT community especially our Dynamics 365 delivery teams in India. The advisory spans an extraordinary breadth of Microsoft products, literally putting the entire country’s Microsoft user base on high alert. This isn’t isolated to Dynamics; it extends to Windows, Office, Azure, SQL Server, System Center, developer tools, browsers, legacy systems under Extended Security Updates (ESU), and more.

If your operations touch any part of the Microsoft ecosystem, this advisory is a clear signal: action isn’t optional. It’s urgent.

Products Affected: It’s All of Microsoft

CERT‑In’s wake‑up call covers an exceptionally wide range of Microsoft technologies:

  • Windows (Desktop & Server): Operating systems across consumer and enterprise editions.
  • Office Suite: Including Word, Excel, Outlook, Teams, and related applications.
  • Azure Cloud Services: Public cloud infrastructure and platform services.
  • Microsoft 365: Enterprise productivity and collaboration solutions.
  • SQL Server & System Center: Backend and infrastructure management tools.
  • Developer Tools: Visual Studio and associated SDKs.
  • Browsers & Edge: Web platforms, including rendering engines.
  • Dynamics 365: CRM/ERP services both Cloud and On‑Premises.
  • Extended Security Update (ESU) Legacy Products: Older operating systems still underpaid support.

This breadth underscores why the Indian government deemed the alert so critical: every facet of Microsoft’s tech stack is potentially at risk.

I would encourage you reading this to review the original CERT-IN Advisory CIAD-2025-0028  

Dynamics 365 Vulnerabilities: Front and Center

While the broader portfolio is under alarm, it’s crucial we don’t lose sight of the Dynamics 365-specific risks that directly impact our core customer operations and delivery teams:

From recent advisories:

These reflect stealthy attack vectors from data leaks and UI spoofing to session hijacking and backend service exploits.

Why This Matters: Across Quisitive & Your Infrastructure

  • Operations Across Multiple Microsoft Pillars: Many customers leverage Azure infrastructure, Microsoft 365 collaboration, and Dynamics deployments making the risk exposure multi-dimensional.
  • India-Based Delivery at the Epicenter: CERT‑In’s alert means our India teams are operating in potentially compromised environments, increasing the stakes for both client delivery and security posture.
  • Interconnected Risk Cascades: A breach in Azure or Office could cascade into Dynamics, especially with interconnected identity (AAD), APIs, and shared data flows.

Immediate, Unified Response Strategy

A. Patch & Update: Every Platform, Now

  • Apply all relevant updates from Microsoft’s July and August 2025 security guidance.
  • Pay special attention to Defender alerts for Azure, Dynamics, M365, SQL Server, and legacy ESU systems.

B. Expand Security Monitoring & Detection

  • Activate vulnerability scanning and monitoring across Azure, M365, Dynamics, and Windows.
  • Use Microsoft Defender Vulnerability Management and Sentinel for centralized visibility.

C. Harden and Validate Controls

  • Enforce least-privilege access across all tools.
  • Enable strong input validation, spoofing defenses, and sandboxing mechanisms.
  • Simulate common exploit vectors (e.g., SSRF, XSS) in controlled penetration tests.

D. Train, Alert, Coordinate

  • Conduct immediate briefing sessions for your India and global delivery teams on all high-risk CVEs.
  • Roll out automated patch compliance dashboards and escalation protocols.

E. Strengthen Governance & Incident Response

  • Embed patching and security checks into release lifecycles.
  • Arm your Incident Response plans with specific guides for Azure/M365/Dynamics incidents.

Consequences of Inaction: A Multi-Tiered Risk Horizon

  • Data Breaches: From credential theft to exfiltration of customer data across services.
  • Service Outages: A single exploited vulnerability might disrupt cloud infrastructure or adjacent services.
  • Cross-Platform Takeovers: A compromised Office or Azure breach can pivot into Dynamics or vice versa.
  • Legal & Reputational Harm: Exposures can lead to fines, compliance failures, and client trust erosion.

Final Word: Comprehensive, Coordinated Defense

The CERT-In advisory, calling out every major Microsoft technology, demands nothing short of full-spectrum defense. For Quisitive, this means comprehensive safeguards across Dynamics, Azure, Microsoft 365, Windows, SQL, and more.

Areas of Action:

  • Accelerate patching across all platforms.
  • Expand monitoring and defense posture.
  • Equip delivery teams with clear response playbooks.
  • Reinforce long-run governance to prevent recurrence.

Our mission is simple: protect customer operations and uphold trust. I’m ready to help coordinate patch management, training sessions, or communications strategy. Let’s ensure our defenses are just as robust as the threats we face.

How Quisitive Can Help

  • Spyglass® Security & Compliance Program: Continuous security improvement with MDR, compliance mapping, and vulnerability remediation to protect against Office exploit vectors.
  • Azure Management Services (AMS): Proactive cloud monitoring, cost/security optimization, and automated patch governance across your Microsoft 365 and Azure environments.
  • Vulnerability & Remediation Management Services (VRM):  Advanced automation and expertise to identify, execute, remediate, and document vulnerability, patch and hardening practices within your Microsoft 365 and Azure environments.
  • Managed AI Service: Integrated AI-powered monitoring, anomaly detection, and prompt governance to reduce human error and improve defense readiness.
  • Staff Augmentation Services:  In cases like this, you may just need some experts to lend a helping hand.  Contact us immediately if you need hands-on experts to help with this and other tactical needs.

If your organization needs assistance validating patch deployment, strengthening Office and Microsoft 365 defenses, or establishing a proactive incident response plan, connect with Quisitive’s security team today. We’ll help you close this exposure before attackers exploit it.

Until next time,
Ed