CVE-2025-53950
📋 TL;DR
This vulnerability allows authenticated administrators of Fortinet FortiDLP Agent's Outlookproxy plugin to collect email information from the current user, potentially exposing private personal information. It affects multiple versions of FortiDLP Agent on both macOS and Windows systems.
💻 Affected Systems
- Fortinet FortiDLP Agent Outlookproxy plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An authenticated malicious administrator could systematically collect sensitive email content, attachments, and metadata from all users on affected systems, leading to data breaches, privacy violations, and regulatory compliance failures.
Likely Case
An administrator with legitimate access could inadvertently or intentionally view email content they shouldn't have access to, violating user privacy and potentially exposing confidential information.
If Mitigated
With proper access controls and monitoring, the impact is limited to authorized administrators who are already trusted with system access, though privacy violations could still occur.
🎯 Exploit Status
Exploitation requires administrator privileges on the affected system. No public exploit code is known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Fortinet advisory for specific patched versions
Vendor Advisory: https://fortiguard.fortinet.com/psirt/FG-IR-25-639
Restart Required: No
Instructions:
1. Review Fortinet advisory FG-IR-25-639. 2. Identify affected FortiDLP Agent versions in your environment. 3. Upgrade to patched versions as specified by Fortinet. 4. Verify the update was successful.
🔧 Temporary Workarounds
Restrict Administrator Access
allLimit the number of users with administrator privileges on systems running FortiDLP Agent to reduce attack surface.
Monitor Administrator Activity
allImplement logging and monitoring of administrator actions on systems with FortiDLP Agent to detect potential misuse.
🧯 If You Can't Patch
- Implement strict access controls and least privilege principles for administrator accounts
- Enable detailed logging and monitoring of administrator activities on affected systems
🔍 How to Verify
Check if Vulnerable:
Check FortiDLP Agent version via FortiClient interface or system information. Compare against affected versions listed in the advisory.Check Version:
On Windows: Check FortiClient interface or Program Files\Fortinet\FortiClient. On macOS: Check Applications or system information.Verify Fix Applied:
Verify FortiDLP Agent version has been updated to a version not listed in the affected versions. Check Fortinet advisory for specific patched versions.📡 Detection & Monitoring
Log Indicators:
- Unusual administrator access to FortiDLP Agent components
- Multiple email access attempts by administrators
- Changes to FortiDLP Agent configuration
Network Indicators:
- Unusual outbound data transfers from systems with FortiDLP Agent
SIEM Query:
source="fortidlp" AND (event_type="admin_access" OR event_type="email_access") AND user_role="administrator"