CVE-2025-64655
📋 TL;DR
This vulnerability allows unauthorized attackers to elevate privileges in Dynamics OmniChannel SDK Storage Containers through improper authorization checks. Attackers can gain higher-level access over the network without proper credentials. Organizations using Microsoft Dynamics OmniChannel SDK are affected.
💻 Affected Systems
- Microsoft Dynamics 365 OmniChannel SDK
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to access sensitive data, modify configurations, and potentially pivot to other systems in the network.
Likely Case
Unauthorized access to storage containers leading to data theft, privilege escalation, and potential lateral movement within the network.
If Mitigated
Limited impact with proper network segmentation, strong authentication controls, and monitoring in place.
🎯 Exploit Status
Network-based attack requiring no authentication; exploit details not publicly available
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Security Update Guide for specific patched versions
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64655
Restart Required: Yes
Instructions:
1. Review Microsoft Security Update Guide for CVE-2025-64655. 2. Apply the latest security updates for Dynamics 365 OmniChannel SDK. 3. Restart affected services. 4. Verify the patch is applied correctly.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to Dynamics OmniChannel SDK storage containers to only authorized systems
Access Control Hardening
allImplement strict authentication and authorization controls for storage container access
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to affected systems
- Enable detailed logging and monitoring for unauthorized access attempts to storage containers
🔍 How to Verify
Check if Vulnerable:
Check your Dynamics OmniChannel SDK version against Microsoft's advisory for affected versionsCheck Version:
Check Dynamics 365 admin center or deployment configuration for OmniChannel SDK versionVerify Fix Applied:
Verify the patched version is installed and check for absence of unauthorized access in logs📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to storage containers
- Privilege escalation events
- Unusual network connections to storage services
Network Indicators:
- Unexpected network traffic to storage container ports
- Connection attempts from unauthorized IP addresses
SIEM Query:
source="dynamics-omnichannel" AND (event_type="unauthorized_access" OR event_type="privilege_escalation")