CVE-2025-54212
📋 TL;DR
A heap-based buffer overflow vulnerability in Adobe InDesign allows arbitrary code execution when a user opens a malicious file. This affects users of InDesign Desktop versions 20.4, 19.5.4 and earlier. Successful exploitation requires user interaction but could lead to full system compromise.
💻 Affected Systems
- Adobe InDesign Desktop
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover with attacker gaining the same privileges as 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 application sandboxing or restricted user privileges, potentially resulting in application crash rather than code execution.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file) and heap manipulation skills. No public exploits known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Adobe Security Bulletin APSB25-79 for latest patched versions
Vendor Advisory: https://helpx.adobe.com/security/products/indesign/apsb25-79.html
Restart Required: Yes
Instructions:
1. Open Adobe Creative Cloud application. 2. Navigate to 'Apps' tab. 3. Find InDesign and click 'Update'. 4. Follow prompts to install latest version. 5. Restart computer after installation.
🔧 Temporary Workarounds
Restrict InDesign file handling
allConfigure system to open .indd files with alternative applications or require verification before opening
User awareness training
allTrain users to only open InDesign files from trusted sources and verify file integrity
🧯 If You Can't Patch
- Run InDesign with restricted user privileges (non-admin account)
- Implement application whitelisting to prevent execution of unauthorized code
🔍 How to Verify
Check if Vulnerable:
Check InDesign version via Help > About InDesign. If version is 20.4 or earlier, or 19.5.4 or earlier, system is vulnerable.Check Version:
On Windows: Check Add/Remove Programs for Adobe InDesign version. On macOS: Check Applications folder > Adobe InDesign > Get Info.Verify Fix Applied:
Verify version is updated beyond 20.4 or 19.5.4. Test opening known-safe InDesign files to ensure functionality.📡 Detection & Monitoring
Log Indicators:
- Unexpected InDesign crashes
- Process creation from InDesign with unusual parameters
- File access to suspicious .indd files
Network Indicators:
- Outbound connections from InDesign process to unknown IPs
- DNS requests for suspicious domains after file open
SIEM Query:
Process:Name='InDesign.exe' AND (EventID=1000 OR ParentProcessName='cmd.exe' OR ParentProcessName='powershell.exe')