CVE-2025-43546
📋 TL;DR
Adobe Bridge versions 15.0.3, 14.1.6 and earlier contain an integer underflow vulnerability that could allow arbitrary code execution when a user opens a malicious file. This affects users of Adobe Bridge who open untrusted files, potentially leading to full system compromise.
💻 Affected Systems
- Adobe Bridge
📦 What is this software?
Bridge by Adobe
Bridge by Adobe
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining the same privileges as the current user, potentially leading to data theft, ransomware deployment, or lateral movement.
Likely Case
Malicious actor tricks user into opening specially crafted file, leading to malware installation or data exfiltration from the victim's system.
If Mitigated
Limited impact due to user awareness training, application sandboxing, and restricted file opening permissions.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). No public exploit code available at time of advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Bridge 15.0.4 and Bridge 14.1.7
Vendor Advisory: https://helpx.adobe.com/security/products/bridge/apsb25-44.html
Restart Required: Yes
Instructions:
1. Open Adobe Bridge. 2. Go to Help > Check for Updates. 3. Follow prompts to install Bridge 15.0.4 or Bridge 14.1.7. 4. Restart Bridge after installation.
🔧 Temporary Workarounds
Restrict file opening
allConfigure system policies to prevent opening untrusted files in Adobe Bridge
Application sandboxing
allRun Adobe Bridge in restricted environment using application sandboxing tools
🧯 If You Can't Patch
- Implement application whitelisting to block execution of malicious payloads
- Deploy endpoint detection and response (EDR) to monitor for suspicious Bridge activity
🔍 How to Verify
Check if Vulnerable:
Check Adobe Bridge version in Help > About Bridge. If version is 15.0.3 or earlier, or 14.1.6 or earlier, system is vulnerable.Check Version:
On Windows: Check Add/Remove Programs for Adobe Bridge version. On macOS: Check Applications folder > Adobe Bridge > Get Info.Verify Fix Applied:
Verify Bridge version is 15.0.4 or higher (for Bridge 15) or 14.1.7 or higher (for Bridge 14).📡 Detection & Monitoring
Log Indicators:
- Unusual Bridge process spawning child processes
- Bridge crashes with memory access violations
- Suspicious file opens in Bridge logs
Network Indicators:
- Bridge process making unexpected outbound connections after file open
SIEM Query:
process_name:"bridge.exe" AND (child_process_count > 3 OR memory_violation OR suspicious_file_extension)