# CVE-2026-108387: radare2: Remote code execution when loading Pebble/SMD binary

Status: published. Published: 2026-11-04. Updated: 2026-11-04.

radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.2, attacker-controlled data from several binary format plugins could reach RBinInfo->bclass. Opening or analyzing a crafted Pebble or Sega Mega Drive binary could place a dbg:// URI in bclass, causing radare2 to reopen the input through the debug input/output plugin and ultimately pass attacker-controlled arguments to execvp(). This could execute commands with the privileges of the radare2 process without an explicit debugging command. This issue is fixed in version 6.2.2.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- radareorg / radare2: < 6.2.2 (affected). Source: CNA: GitHub_M

## Severity and prioritization

- CVSS 4.0: 8.5 (high); CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: GitHub_M

- CVSS 4.0: 8.5 (high); CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/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; source: NVD: security-advisories@github.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-78

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/radareorg/radare2/security/advisories/GHSA-px7c-gwvj-73vf (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/radareorg/radare2/issues/26600 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/radareorg/radare2/commit/59899e6b8b18772ce9460b4caa2ced7f257fae76 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/radareorg/radare2/commit/c9de154cafd788d66535435e43ad6a54aed7ea2a (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/radareorg/radare2/releases/tag/6.2.2 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/radareorg/radare2/commit/59899e6b8b18772ce9460b4caa2ced7f257fae76 (security-advisories@github.com)

- https://github.com/radareorg/radare2/commit/c9de154cafd788d66535435e43ad6a54aed7ea2a (security-advisories@github.com)

- https://github.com/radareorg/radare2/issues/26600 (security-advisories@github.com)

- https://github.com/radareorg/radare2/releases/tag/6.2.2 (security-advisories@github.com)

- https://github.com/radareorg/radare2/security/advisories/GHSA-px7c-gwvj-73vf (security-advisories@github.com)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-108387; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-108387; retrieved 2026-11-05; source updated 2026-11-04

Revision: 1964b5247c6ae823be47b8e79d49e4c98ffc961599441abb97218d691f5f1acd

Canonical: https://y2.dev/cve/CVE-2026-108387

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