CVE-2025-49596

9.4 CRITICAL 44% exploit odds Drop everything Fix listed Auth & access

What it is

The MCP inspector is a developer tool for testing and debugging MCP servers. Versions of MCP Inspector below 0.14.1 are vulnerable to remote code execution due to lack of authentication between the Inspector client and proxy, allowing unauthenticated requests to launch MCP commands over stdio. Users should immediately upgrade to version 0.14.1 or later to address these vulnerabilities.

At a glance

Exploitability: Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure, data tampering, service disruption.
Exploit odds: 44.5% chance of exploitation in the next 30 days (EPSS). Higher than most.
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2025-06-06 15:44 UTC ReservedThe CVE id was reserved by its CNA
2025-06-13 20:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 09:31 UTC Last updatedMost recent change to the record

Details

Published: 2025-06-13 20:15 UTC
Last modified: 2026-06-17 09:31 UTC
Exploit probability: 44.5% · EPSS, next 30 days
Weakness: CWE-306 · Missing authentication
Record status: Deferred

Attack profile CVSS 4.0 · 9.4

Attack vector: Network
Complexity: Low
Attack requirements: None
Privileges needed: None
User interaction: Passive
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

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Fix and advisories

References

NVD record · CVE.org record