CVE-2025-0514
📋 TL;DR
This vulnerability in LibreOffice allows attackers to execute arbitrary Windows executables through malicious hyperlinks. When a user clicks on a specially crafted hyperlink in a document, the executable runs without warning or validation. This affects LibreOffice users on Windows systems running vulnerable versions.
💻 Affected Systems
- LibreOffice
📦 What is this software?
Libreoffice by Libreoffice
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise via arbitrary code execution, potentially leading to ransomware deployment, data theft, or persistent backdoor installation.
Likely Case
Malware installation or credential theft when users open malicious documents containing weaponized hyperlinks.
If Mitigated
No impact if users avoid clicking suspicious hyperlinks or if proper security controls block malicious documents.
🎯 Exploit Status
Requires user interaction (clicking hyperlink) and Windows environment. No authentication bypass needed beyond document access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 24.8.5 or later
Vendor Advisory: https://www.libreoffice.org/about-us/security/advisories/cve-2025-0514
Restart Required: No
Instructions:
1. Open LibreOffice. 2. Go to Help > Check for Updates. 3. Follow prompts to update to version 24.8.5 or later. 4. Alternatively, download latest version from official LibreOffice website.
🔧 Temporary Workarounds
Disable hyperlink execution
windowsConfigure LibreOffice to disable execution of hyperlinks to executable files
Use Protected View
allConfigure LibreOffice to open all documents from untrusted sources in Protected View mode
🧯 If You Can't Patch
- Implement application whitelisting to block unauthorized executable execution
- Use email/web gateways to block documents with executable hyperlinks
🔍 How to Verify
Check if Vulnerable:
Check LibreOffice version via Help > About LibreOffice. If version is between 24.8.0 and 24.8.4 on Windows, system is vulnerable.Check Version:
Not applicable - use GUI method via Help > About LibreOfficeVerify Fix Applied:
After update, verify version is 24.8.5 or later in Help > About LibreOffice.📡 Detection & Monitoring
Log Indicators:
- Windows Event Logs showing unexpected process execution from LibreOffice
- LibreOffice logs showing hyperlink activation to .exe files
Network Indicators:
- Outbound connections from LibreOffice to suspicious domains after hyperlink activation
SIEM Query:
Process creation where parent process contains 'soffice' AND command line contains '.exe'