CVE-2026-40499
radare2 < 6.1.4 Command Injection via PDB Parser print_gvars()
Description
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.
INFO
Published Date :
April 15, 2026, 4:17 a.m.
Last Modified :
May 1, 2026, 3:20 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update radare2 to version 6.1.4 or later.
- Avoid processing untrusted PDB files.
- Validate PE section header names.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-40499.
| URL | Resource |
|---|---|
| https://github.com/radareorg/radare2/commit/5590c87deeb7eb2a106fd7aab9ca88bfeebb7397 | Patch |
| https://github.com/radareorg/radare2/issues/25752 | Exploit Issue Tracking Third Party Advisory |
| https://github.com/radareorg/radare2/releases/tag/6.1.4 | Release Notes |
| https://www.vulncheck.com/advisories/radare2-command-injection-via-pdb-parser-print-gvars | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-40499 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-40499
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-40499 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-40499 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 01, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:* versions up to (including) 6.1.4 Added Reference Type VulnCheck: https://github.com/radareorg/radare2/commit/5590c87deeb7eb2a106fd7aab9ca88bfeebb7397 Types: Patch Added Reference Type VulnCheck: https://github.com/radareorg/radare2/issues/25752 Types: Exploit, Issue Tracking, Third Party Advisory Added Reference Type VulnCheck: https://github.com/radareorg/radare2/releases/tag/6.1.4 Types: Release Notes Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/radare2-command-injection-via-pdb-parser-print-gvars Types: Third Party Advisory -
CVE Modified by [email protected]
Apr. 20, 2026
Action Type Old Value New Value Removed Reference https://blog.calif.io/p/mad-bugs-discovering-a-0-day-in-zero -
CVE Modified by [email protected]
Apr. 16, 2026
Action Type Old Value New Value Removed Reference https://github.com/radareorg/radare2/pull/25731 -
New CVE Received by [email protected]
Apr. 15, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-78 Added Reference https://blog.calif.io/p/mad-bugs-discovering-a-0-day-in-zero Added Reference https://github.com/radareorg/radare2/commit/5590c87deeb7eb2a106fd7aab9ca88bfeebb7397 Added Reference https://github.com/radareorg/radare2/issues/25752 Added Reference https://github.com/radareorg/radare2/pull/25731 Added Reference https://github.com/radareorg/radare2/releases/tag/6.1.4 Added Reference https://www.vulncheck.com/advisories/radare2-command-injection-via-pdb-parser-print-gvars