CVE-2025-61824

7.8 HIGH

📋 TL;DR

A heap-based buffer overflow vulnerability in Adobe InDesign allows attackers to execute arbitrary code when a user opens a malicious file. This affects users of InDesign Desktop versions 20.5, 19.5.5 and earlier. Successful exploitation requires user interaction but could lead to full system compromise.

💻 Affected Systems

Products:
  • Adobe InDesign Desktop
Versions: 20.5, 19.5.5 and earlier
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 takeover with the current user's privileges, allowing data theft, ransomware deployment, or persistent backdoor installation.

🟠

Likely Case

Malware installation leading to data exfiltration, credential theft, or lateral movement within the network.

🟢

If Mitigated

Limited impact if file execution is blocked or user privileges are restricted, potentially causing application crashes only.

🌐 Internet-Facing: LOW
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires user interaction (opening malicious file). No public exploit code is currently available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 20.5.1 and 19.5.6

Vendor Advisory: https://helpx.adobe.com/security/products/indesign/apsb25-106.html

Restart Required: Yes

Instructions:

1. Open Adobe Creative Cloud application
2. Navigate to 'Apps' section
3. Find Adobe InDesign and click 'Update'
4. Restart computer after update completes

🔧 Temporary Workarounds

Block InDesign file execution via application control

all

Prevent execution of InDesign files from untrusted sources using application whitelisting or blocking policies.

Disable InDesign file preview in Windows Explorer

windows

Prevent automatic file parsing by disabling preview handlers for InDesign files.

reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\PreviewHandlers" /v "{F3B06C75-B0ED-475F-A15C-6F9D7B786C6F}" /t REG_SZ /d "" /f

🧯 If You Can't Patch

  • Implement application control to block InDesign execution from untrusted locations
  • Educate users to never open InDesign files from unknown or untrusted sources

🔍 How to Verify

Check if Vulnerable:

Check InDesign version via Help > About InDesign. If version is 20.5, 19.5.5 or earlier, system is vulnerable.

Check Version:

On Windows: Get-ItemProperty "HKLM:\SOFTWARE\Adobe\InDesign\*\*\*" | Select-Object Version | On macOS: /Applications/Adobe\ InDesign\ */Adobe\ InDesign.app/Contents/Info.plist

Verify Fix Applied:

Verify version is 20.5.1 or 19.5.6 or later in Help > About InDesign.

📡 Detection & Monitoring

Log Indicators:

  • Unexpected InDesign crashes with memory access violations
  • InDesign processes spawning child processes like cmd.exe or powershell.exe
  • File creation/modification events from InDesign process in unusual locations

Network Indicators:

  • Outbound connections from InDesign process to unknown IP addresses
  • DNS queries for suspicious domains from systems running InDesign

SIEM Query:

process_name:"indesign.exe" AND (process_child_name:"cmd.exe" OR process_child_name:"powershell.exe")

🔗 References

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