CVE-2025-62206
📋 TL;DR
This vulnerability in Microsoft Dynamics 365 (on-premises) allows unauthorized attackers to access sensitive information over the network. Attackers can exploit this to view confidential data without authentication. Organizations running on-premises Dynamics 365 deployments are affected.
💻 Affected Systems
- Microsoft Dynamics 365 (on-premises)
📦 What is this software?
Dynamics 365 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Complete exposure of sensitive business data, customer information, financial records, or intellectual property to unauthorized external actors.
Likely Case
Partial disclosure of sensitive information such as customer data, configuration details, or business intelligence that could be used for further attacks.
If Mitigated
Limited information exposure with proper network segmentation and access controls in place.
🎯 Exploit Status
CWE-200 indicates information exposure vulnerability, typically requiring network access but no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Security Update Guide for specific patch versions
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62206
Restart Required: Yes
Instructions:
1. Review Microsoft Security Update Guide for CVE-2025-62206. 2. Download and apply the security update from Microsoft Update Catalog. 3. Restart affected Dynamics 365 services. 4. Verify the update was applied successfully.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to Dynamics 365 servers to only authorized internal networks
Firewall Rules
allImplement strict firewall rules to limit inbound connections to Dynamics 365 servers
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to isolate Dynamics 365 servers
- Enable detailed logging and monitoring for unauthorized access attempts to sensitive endpoints
🔍 How to Verify
Check if Vulnerable:
Check Dynamics 365 version against Microsoft's security bulletin for affected versionsCheck Version:
Check Dynamics 365 version through administrative console or PowerShell: Get-Command -Module Microsoft.Dynamics*Verify Fix Applied:
Verify patch installation through Windows Update history or version check of Dynamics 365 components📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to sensitive endpoints
- Unusual data retrieval patterns
- Access from unexpected IP addresses
Network Indicators:
- Unusual outbound data transfers from Dynamics 365 servers
- Connection attempts to sensitive endpoints from unauthorized sources
SIEM Query:
source="dynamics365" AND (event_type="unauthorized_access" OR http_status="200" AND uri_contains="sensitive")