What is CVE-2026-6942?

CVE-2026-6942 is a critical-severity vulnerability in Radare Radare2_mcp_server, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-04-23.

How severe is CVE-2026-6942?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Radare Radare2_mcp_server

CVE-2026-6942

radare2-mcp version 1.6.0 and earlier contains an os command injection vulnerability that allows remote attackers to execute arbitrary commands by bypassing the command filter through shell metacharacters in user-controlled input passed to…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.004 (63.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

disclosure@vulncheck.com (Exploit, technical-description, exploit, Issue Tracking)
disclosure@vulncheck.com (issue-tracking, Patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-6942?: CVE-2026-6942 is a critical-severity vulnerability in Radare Radare2_mcp_server, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-04-23.
How severe is CVE-2026-6942?: Critical severity. CVSS v3 base score is 9.8 out of 10.