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CVE-2025-64443

Docker Mcp Gateway vulnerability

9.6 CRITICALEPSS 0.43%
  1. Published3 Dec 2025

Description

MCP Gateway allows easy and secure running and deployment of MCP servers. In versions 0.27.0 and earlier, when MCP Gateway runs in sse or streaming transport mode, it is vulnerable to DNS rebinding. An attacker who can get a victim to visit a malicious website or be served a malicious advertisement can perform browser-based exploitation of MCP servers executing behind the gateway, including manipulating tools or other features exposed by those MCP servers. MCP Gateway is not affected when running in the default stdio mode, which does not listen on network ports. Version 0.28.0 fixes this issue.

CVSS 3.1 breakdown

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

Affected products

Docker Mcp Gateway< 0.28.0

Remediation

Fixed in
Docker Mcp Gateway≥ 0.28.0

References

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Frequently asked

Is CVE-2025-64443 being actively exploited?

CVE-2025-64443 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.43%.

How severe is CVE-2025-64443?

CVE-2025-64443 has a CVSS 3.1 base score of 9.6, rated critical. EPSS estimates a 0.43% probability of exploitation.

Which products are affected by CVE-2025-64443?

Affected products include Docker Mcp Gateway.

How do I fix CVE-2025-64443?

Upgrade affected software to a fixed version, for example Docker Mcp Gateway 0.28.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-64443 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.