Attack Chain

1. Attacker identifies a vulnerable radare2 installation configured on a UNIX system without SSL.
2. Attacker crafts a malicious PDB file name containing embedded OS commands.
3. Attacker supplies the crafted PDB file name as input to the rabin2 -PP command.
4. rabin2 processes the PDB name without proper sanitization.
5. The embedded OS commands within the PDB name are executed by the system.
6. Attacker gains arbitrary code execution within the context of the radare2 process.
7. Attacker leverages the initial access to escalate privileges.
8. Attacker performs malicious actions such as data exfiltration, system compromise, or denial of service.

Impact

Successful exploitation of CVE-2026-41015 allows an attacker to execute arbitrary commands on the affected system. This can lead to complete system compromise, including data theft, malware installation, or denial of service. The impact is particularly severe if radare2 is running with elevated privileges. The number of potential victims is dependent on the number of radare2 installations running vulnerable versions and configurations, but it is estimated to be relatively low due to the specific configuration requirements and the short lifespan of the vulnerable code in the git repository.

Recommendation

• Apply the patch from commit 9236f44 to remediate the command injection vulnerability in radare2.
• Avoid configuring radare2 on UNIX systems without SSL to reduce the attack surface.
• Deploy the Sigma rule radare2-suspicious-rabin2-execution to detect exploitation attempts involving the rabin2 command.
• Monitor process execution for rabin2 with unusual command-line arguments as indicated by the rule radare2-rabin2-pdb-injection.