Vulnerability · Published Apr 22, 2026 · Assigned by VulnCheck

CVE-2026-40517radare2 < 6.1.4 Command Injection via PDB Parser Symbol Names

High 7.8

In plain English

A high-severity OS command injection in radare2 from radareorg. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 64% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)1.1%top 35.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Ubuntu:25.10	radare2	no fix listed	UBUNTU-CVE-2026-40517
Ubuntu:26.04:LTS	radare2	no fix listed	UBUNTU-CVE-2026-40517
Ubuntu:26.10	radare2	no fix listed	UBUNTU-CVE-2026-40517

Affected products (as reported)

Vendor	Product	Versions
radareorg	radare2	0 – before 6.1.4

Weakness: CWE-78 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://blog.calif.io/p/mad-bugs-discovering-a-0-day-in-zero technical-description, exploit
https://github.com/radareorg/radare2/issues/25730 issue-tracking
https://github.com/radareorg/radare2/pull/25731 issue-tracking
https://www.vulncheck.com/advisories/radare2-command-injection-via-pdb-parser-symbol-names third-party-advisory