All vulnerabilities
CVE-2026-107824GHSA-4478-h5jv-647mGHSA-jgj3-97w2-9v9r

x64dbg-mcp-server: x64dbg-MCP Server exposes debugger operations to unauthenticated network clients

duty1g x64dbg-mcp-server
Open in ThreatlineRecord JSON
CVSS
9.3Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.40%Chance of exploitation activity in the next 30 days, higher than 33% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in1.0Fixed versionGitHub
Published9 Oct 2026Updated 14 Oct 2026CVE List

What fixes it

  • 1.0x64dbg-mcp-server, otherGitHub

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

x64dbg-MCP Server is a native Model Context Protocol (MCP) plugin for x64dbg that exposes the debugger's full functionality over HTTP. Prior to 1.1, x64dbg-MCP Server exposes all MCP debugger tools over HTTP and SSE without authentication while listening on 0.0.0.0 by default. Any unauthenticated network client that can reach the default port, 9094 for x64 or 9095 for x32, can execute arbitrary x64dbg commands, attach to processes by PID, read and write debuggee memory, and write files to arbitrary paths. This issue is fixed in version 1.1.

Text from CVE List

Affected versions 2

  • x64dbg-mcp-serveraffected: < 1.1CVE List
  • x64dbg-mcp-server, other< 1.0GitHub

References 6