CVE-2025-9325
📋 TL;DR
This vulnerability in Foxit PDF Reader allows attackers to read memory beyond allocated bounds when parsing malicious PRC files, potentially disclosing sensitive information. Users who open malicious PDF files or visit compromised websites are affected. The vulnerability requires user interaction but could be combined with other exploits for code execution.
💻 Affected Systems
- Foxit PDF Reader
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Information disclosure combined with other vulnerabilities could lead to arbitrary code execution in the current user context, potentially compromising the entire system.
Likely Case
Sensitive memory contents disclosure including passwords, keys, or other application data, potentially enabling further attacks.
If Mitigated
Limited information disclosure with no code execution due to proper sandboxing and exploit mitigations.
🎯 Exploit Status
Requires user interaction to open malicious file. Information disclosure alone may not be sufficient for full compromise without additional vulnerabilities.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Foxit security bulletin for specific patched version
Vendor Advisory: https://www.foxit.com/support/security-bulletins.html
Restart Required: No
Instructions:
1. Visit Foxit security bulletins page. 2. Identify the specific advisory for CVE-2025-9325. 3. Download and install the latest version of Foxit PDF Reader. 4. Verify installation completes successfully.
🔧 Temporary Workarounds
Disable PRC file handling
allConfigure Foxit PDF Reader to not process PRC files or use alternative PDF viewers for PRC content
User education and restrictions
allTrain users to avoid opening PDF files from untrusted sources and implement application whitelisting
🧯 If You Can't Patch
- Implement application control to block execution of Foxit PDF Reader
- Use alternative PDF readers that don't support PRC file format
🔍 How to Verify
Check if Vulnerable:
Check Foxit PDF Reader version against affected versions listed in Foxit security advisoryCheck Version:
In Foxit PDF Reader: Help → About Foxit Reader (Windows) or Foxit Reader → About Foxit Reader (macOS)Verify Fix Applied:
Verify installed Foxit PDF Reader version is equal to or higher than patched version specified in advisory📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing PDF files
- Unusual memory access patterns in application logs
Network Indicators:
- Downloads of PDF files from suspicious sources
- Unusual outbound connections after PDF file opening
SIEM Query:
EventID=1000 OR EventID=1001 Source="Foxit Reader" AND Keywords="Exception" OR "Access Violation"