CVE-2025-21134
📋 TL;DR
Adobe Illustrator on iPad versions 3.0.7 and earlier contain an integer underflow vulnerability that could allow arbitrary code execution when a user opens a malicious file. This affects iPad users running vulnerable versions of the Illustrator app.
💻 Affected Systems
- Adobe Illustrator for iPad
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining the same privileges as the logged-in user, potentially leading to data theft, ransomware deployment, or persistent access.
Likely Case
Local privilege escalation allowing attackers to execute malicious code, access sensitive files, or install additional malware on the affected iPad.
If Mitigated
Limited impact with proper application sandboxing and user awareness preventing malicious file execution.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file) and knowledge of the integer underflow condition. No public exploits known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.8 or later
Vendor Advisory: https://helpx.adobe.com/security/products/illustrator-mobile-ios/apsb25-04.html
Restart Required: No
Instructions:
1. Open the App Store on your iPad. 2. Tap your profile icon. 3. Scroll to find Adobe Illustrator. 4. Tap 'Update' if available. 5. Alternatively, uninstall and reinstall to get latest version.
🔧 Temporary Workarounds
Avoid opening untrusted files
allDo not open Illustrator files from unknown or untrusted sources.
🧯 If You Can't Patch
- Restrict file opening to trusted sources only
- Use mobile device management (MDM) to block Illustrator app if necessary
🔍 How to Verify
Check if Vulnerable:
Check Illustrator version in app settings or App Store update history.Check Version:
Open Illustrator → Settings → About → Check version numberVerify Fix Applied:
Confirm Illustrator version is 3.0.8 or higher in app settings.📡 Detection & Monitoring
Log Indicators:
- App crash logs from Illustrator, unusual file access patterns
Network Indicators:
- Unusual outbound connections from iPad after opening Illustrator files
SIEM Query:
Illustrator app crash events OR suspicious file opens from untrusted sources