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CVE-2026-6942

Radare Radare2 Mcp Server remote code execution

9.8 CRITICALPublic exploitEPSS 2.98%
  1. Published23 Apr 2026

Description

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 r2_cmd_str(). Attackers can inject shell metacharacters through the jsonrpc interface parameters to achieve remote code execution on the host running radare2-mcp without requiring authentication.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Radare Radare2 Mcp Server< 1.7.0

Remediation

Fixed in
Radare Radare2 Mcp Server≥ 1.7.0

References

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Frequently asked

Is CVE-2026-6942 being actively exploited?

CVE-2026-6942 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 2.98%.

How severe is CVE-2026-6942?

CVE-2026-6942 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 2.98% probability of exploitation.

Which products are affected by CVE-2026-6942?

Affected products include Radare Radare2 Mcp Server.

How do I fix CVE-2026-6942?

Upgrade affected software to a fixed version, for example Radare Radare2 Mcp Server 1.7.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-6942 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.