CVE-2026-40499

radare2 prior to version 6.1.4 contains a command injection vulnerability in the PDB parser's print_gvars() function that allows attackers to execute arbitrary commands by embedding a newline byte in the PE section header name field. Attackers can craft a malicious PDB file with specially crafted section names to inject r2 commands that are executed when the idp command processes the file.

The following products are affected by CVE-2026-40499 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-40499.

URL	Resource
https://blog.calif.io/p/mad-bugs-discovering-a-0-day-in-zero
https://github.com/radareorg/radare2/commit/5590c87deeb7eb2a106fd7aab9ca88bfeebb7397
https://github.com/radareorg/radare2/issues/25752
https://github.com/radareorg/radare2/releases/tag/6.1.4
https://www.vulncheck.com/advisories/radare2-command-injection-via-pdb-parser-print-gvars