CVE-2025-58322
📋 TL;DR
This vulnerability in NAVER MYBOX Explorer for Windows allows local attackers to escalate privileges to SYSTEM level by loading arbitrary DLLs. It affects users running vulnerable versions of the software on Windows systems. The issue stems from improper privilege checks during DLL invocation.
💻 Affected Systems
- NAVER MYBOX Explorer for Windows
📦 What is this software?
Mybox by Navercorp
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with SYSTEM privileges, enabling installation of persistent malware, credential theft, and full control over the affected machine.
Likely Case
Local privilege escalation allowing attackers to bypass security controls, install unauthorized software, and access sensitive system resources.
If Mitigated
Limited impact if proper user access controls are enforced and vulnerable software is not installed on critical systems.
🎯 Exploit Status
Exploitation requires local access but appears straightforward based on the CWE-266 (Incorrect Privilege Assignment) classification.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.8.133 or later
Vendor Advisory: https://cve.naver.com/detail/cve-2025-58322.html
Restart Required: Yes
Instructions:
1. Download the latest version from official NAVER sources. 2. Uninstall the vulnerable version. 3. Install version 3.0.8.133 or newer. 4. Restart the system.
🔧 Temporary Workarounds
Remove vulnerable software
windowsUninstall NAVER MYBOX Explorer if not required for business operations
Control Panel > Programs > Uninstall a program > Select NAVER MYBOX Explorer > Uninstall
Restrict local user privileges
windowsEnsure users operate with least privilege principles to limit impact
🧯 If You Can't Patch
- Restrict installation of NAVER MYBOX Explorer to non-critical systems only
- Implement application whitelisting to prevent unauthorized DLL loading
🔍 How to Verify
Check if Vulnerable:
Check NAVER MYBOX Explorer version in Control Panel > Programs > Programs and FeaturesCheck Version:
wmic product where name="NAVER MYBOX Explorer" get versionVerify Fix Applied:
Verify installed version is 3.0.8.133 or higher after update📡 Detection & Monitoring
Log Indicators:
- Unusual DLL loading events in Windows Event Logs (Security/Application)
- Process creation events with SYSTEM privileges from user contexts
Network Indicators:
- Not applicable - local exploitation only
SIEM Query:
EventID=4688 AND NewProcessName contains "NAVER MYBOX" AND SubjectUserName!=SYSTEM