CVE-2025-1744
📋 TL;DR
CVE-2025-1744 is an out-of-bounds write vulnerability in radare2 that allows heap-based buffer over-read or buffer overflow. This affects all users running radare2 versions before 5.9.9. Attackers could exploit this to execute arbitrary code or cause denial of service.
💻 Affected Systems
- radare2
📦 What is this software?
Radare2 by Radare
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or persistent backdoor installation.
Likely Case
Application crash (denial of service) or limited information disclosure from memory reads.
If Mitigated
Application crash with no data loss if proper sandboxing and privilege separation are implemented.
🎯 Exploit Status
The vulnerability requires feeding specially crafted input to radare2, which could be automated. No public exploit code is currently known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.9.9
Vendor Advisory: https://github.com/radareorg/radare2/pull/23969
Restart Required: No
Instructions:
1. Update radare2 to version 5.9.9 or later using your package manager. 2. For manual installation: git clone https://github.com/radareorg/radare2 && cd radare2 && sys/install.sh. 3. Verify the update with 'r2 -v'.
🔧 Temporary Workarounds
Restrict radare2 usage
linuxLimit radare2 execution to trusted users and environments only
chmod 750 /usr/bin/r2
setfacl -m u:trusteduser:rx /usr/bin/r2
Sandbox execution
linuxRun radare2 in isolated containers or virtual machines
docker run --rm -it radareorg/radare2:latest
firejail --private /usr/bin/r2
🧯 If You Can't Patch
- Remove radare2 from production systems and use only in isolated analysis environments
- Implement strict input validation and sanitization for any data processed by radare2
🔍 How to Verify
Check if Vulnerable:
Run 'r2 -v' and check if version is below 5.9.9Check Version:
r2 -v | grep -o '\d\.\d\.\d+'Verify Fix Applied:
Run 'r2 -v' and confirm version is 5.9.9 or higher📡 Detection & Monitoring
Log Indicators:
- Segmentation fault or crash logs from radare2 processes
- Unusual memory access patterns in system logs
Network Indicators:
- Unusual network connections originating from radare2 processes
SIEM Query:
process_name:"r2" AND (event_type:"crash" OR exit_code:139)