CVE-2026-40517: radare radare2 OS Command Injection

Vulnerability summary

CVE-2026-40517 is a high (CVSS 8.4) OS Command Injection vulnerability in radare radare2. EPSS estimates a 1.72% chance of exploitation in the next 30 days, higher than 77.1% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 22-04-2026
   PublishedVulnerability first disclosed.
2. 14-07-2026
   Last modifiedVulnerability information updated.

Description

radare2 prior to 6.1.4 contains a command injection vulnerability in the PDB parser's print_gvars() function that allows attackers to execute arbitrary commands by crafting a malicious PDB file with newline characters in symbol names. Attackers can inject arbitrary radare2 commands through unsanitized symbol name interpolation in the flag rename command, which are then executed when a user runs the idp command against the malicious PDB file, enabling arbitrary OS command execution through radare2's shell execution operator.

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.