CVE-2025-47107

7.8 HIGH

📋 TL;DR

CVE-2025-47107 is a heap-based buffer overflow vulnerability in Adobe InCopy that could allow arbitrary code execution when a user opens a malicious file. This affects users of InCopy versions 20.2, 19.5.3 and earlier. Successful exploitation requires user interaction through opening a specially crafted file.

💻 Affected Systems

Products:
  • Adobe InCopy
Versions: 20.2, 19.5.3 and earlier versions
Operating Systems: Windows, macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All default installations of affected versions are vulnerable. No special configuration required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with attacker gaining full control of the victim's computer in the context of the logged-in user, potentially leading to data theft, ransomware deployment, or lateral movement.

🟠

Likely Case

Local privilege escalation leading to malware installation, data exfiltration, or persistence mechanisms being established on the affected system.

🟢

If Mitigated

Limited impact due to user awareness training preventing malicious file opens, or application sandboxing containing the exploit.

🌐 Internet-Facing: LOW - Exploitation requires user interaction with malicious files, not directly exploitable over network.
🏢 Internal Only: MEDIUM - Risk exists primarily through phishing, malicious attachments, or compromised file shares within the organization.

🎯 Exploit Status

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

Exploitation requires user interaction (opening malicious file). No public exploit code available at this time according to Adobe advisory.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Update to InCopy version 20.3 or later, or 19.5.4 or later for older versions

Vendor Advisory: https://helpx.adobe.com/security/products/incopy/apsb25-41.html

Restart Required: Yes

Instructions:

1. Open Adobe InCopy. 2. Go to Help > Check for Updates. 3. Follow prompts to install available updates. 4. Restart InCopy after installation completes.

🔧 Temporary Workarounds

Restrict file opening

all

Configure application control policies to restrict opening of untrusted InCopy files

User awareness training

all

Train users to avoid opening InCopy files from untrusted sources

🧯 If You Can't Patch

  • Implement application whitelisting to block execution of vulnerable InCopy versions
  • Deploy endpoint detection and response (EDR) solutions to monitor for suspicious file opening behavior

🔍 How to Verify

Check if Vulnerable:

Check InCopy version via Help > About InCopy. If version is 20.2, 19.5.3 or earlier, system is vulnerable.

Check Version:

Not applicable - check via application GUI Help > About InCopy

Verify Fix Applied:

Verify InCopy version is 20.3 or later, or 19.5.4 or later for older versions via Help > About InCopy.

📡 Detection & Monitoring

Log Indicators:

  • Unexpected InCopy crashes
  • Suspicious file opening events from unusual sources
  • Process creation anomalies following InCopy execution

Network Indicators:

  • Outbound connections from InCopy process to suspicious domains/IPs following file open

SIEM Query:

Process:InCopy.exe AND (EventID:1000 OR EventID:1001) OR FileOpen from suspicious location

🔗 References

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