CVE-2025-58113

6.5 MEDIUM

📋 TL;DR

An out-of-bounds read vulnerability in PDF-XChange Editor's EMF functionality allows attackers to read memory beyond intended boundaries via specially crafted EMF files. This could lead to sensitive information disclosure. Users of PDF-XChange Editor version 10.7.3.401 are affected.

💻 Affected Systems

Products:
  • PDF-XChange Editor
Versions: 10.7.3.401
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects the EMF file processing functionality when opening malicious files.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete memory disclosure including credentials, encryption keys, or other sensitive data from the application's memory space, potentially enabling further attacks.

🟠

Likely Case

Partial memory disclosure revealing some application data or system information, but not necessarily critical secrets.

🟢

If Mitigated

Limited impact with proper memory protections and sandboxing, potentially only revealing non-sensitive application data.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: MEDIUM

Exploitation requires user interaction to open a malicious EMF file, but no authentication is needed once the file is opened.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check vendor advisory for latest patched version

Vendor Advisory: https://www.tracker-software.com/support/security-advisories

Restart Required: Yes

Instructions:

1. Check current PDF-XChange Editor version
2. Visit vendor security advisory page
3. Download and install latest version
4. Restart system after installation

🔧 Temporary Workarounds

Disable EMF file processing

windows

Configure PDF-XChange Editor to block or warn about EMF files

Application sandboxing

windows

Run PDF-XChange Editor in restricted mode or sandboxed environment

🧯 If You Can't Patch

  • Implement application whitelisting to block PDF-XChange Editor execution
  • Use network segmentation to isolate systems running vulnerable software

🔍 How to Verify

Check if Vulnerable:

Check Help > About in PDF-XChange Editor for version 10.7.3.401

Check Version:

In PDF-XChange Editor: Help > About

Verify Fix Applied:

Verify installed version is newer than 10.7.3.401 and check vendor advisory for specific patched version

📡 Detection & Monitoring

Log Indicators:

  • Application crashes when processing EMF files
  • Unusual memory access patterns in application logs

Network Indicators:

  • Downloads of EMF files from untrusted sources
  • Unusual file transfer activity

SIEM Query:

source="PDF-XChange Editor" AND (event="crash" OR event="error") AND file_extension="emf"

🔗 References

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