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Vulnerability record · CVE-2026-40517 · published 22 April 2026

CVE-2026-40517: Radare2 os command injection vulnerability

Radare · Radare2

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.

8.4 CVSS 4.0 High EPSS 1.7% · top 23.4% CWE-78 · OS command injection
8.4CVSS 4.0 base score
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://blog.calif.io/p/mad-bugs-discovering-a-0-day-in-zero ExploitThird Party Advisory
https://github.com/radareorg/radare2/issues/25730 ExploitIssue TrackingThird Party Advisory
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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2025-1864Radare2 memory buffer overflow vulnerabilityImproper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in radareorg radare2 allows Overflow Buffers.This issue affects…EPSS 0.48%10.0CVE-2025-1744Radare2 out-of-bounds write vulnerabilityOut-of-bounds Write vulnerability in radareorg radare2 allows heap-based buffer over-read or buffer overflow.This issue affects radare2: before <5.9.…EPSS 0.51%9.8CVE-2024-29646Radare2 classic buffer overflow vulnerabilityBuffer Overflow vulnerability in radarorg radare2 v.5.8.8 allows an attacker to execute arbitrary code via the name, type, or group fields.EPSS 0.92%9.8CVE-2023-46569Radare2 out-of-bounds read vulnerabilityAn out-of-bounds read in radare2 v.5.8.9 and before exists in the print_insn32_fpu function of libr/arch/p/nds32/nds32-dis.h.EPSS 0.92%9.8CVE-2023-46570Radare2 out-of-bounds read vulnerabilityAn out-of-bounds read in radare2 v.5.8.9 and before exists in the print_insn32 function of libr/arch/p/nds32/nds32-dis.h.EPSS 0.90%9.8CVE-2023-4322Radare2 heap-based buffer overflow vulnerabilityHeap-based Buffer Overflow in GitHub repository radareorg/radare2 prior to 5.9.0.EPSS 0.95%9.8CVE-2022-0559Radare2 use after free vulnerabilityUse After Free in GitHub repository radareorg/radare2 prior to 5.6.2.EPSS 1.3%9.8CVE-2022-0139Radare2 use after free vulnerabilityUse After Free in GitHub repository radareorg/radare2 prior to 5.6.0.EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2026-40517), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.