CVE-2026-107824CWE-306

CVE-2026-107824

published October 9, 2026

CVSS
9.3
EPSS
0%
Percentile
33.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
9.3 · NONE
CVSS v4.0
9.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00403 · 33.4th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-10-09T22:17Z
References (6)
https://github.com/duty1g/x64dbg-mcp-server/commit/1aad0f88b9c27233d11dbccf08ca415eb5f49203 · [email protected]https://github.com/duty1g/x64dbg-mcp-server/commit/e1daba0038959f88d25ff3376b2a7f922ffeb448 · [email protected]https://github.com/duty1g/x64dbg-mcp-server/releases/tag/1.0 · [email protected]https://github.com/duty1g/x64dbg-mcp-server/releases/tag/v1.1 · [email protected]https://github.com/duty1g/x64dbg-mcp-server/security/advisories/GHSA-4478-h5jv-647m · [email protected]https://github.com/duty1g/x64dbg-mcp-server/security/advisories/GHSA-jgj3-97w2-9v9r · [email protected]
EPSS history
Timeline
  • 11 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 09 OCT 17:45Z
    x64dbg-MCP Server exposes debugger operations to unauthenticated network clients
    cvelistv5
  • 09 OCT 17:45Z
    x64dbg-MCP Server exposes debugger operations to unauthenticated network clients
    cvelistv5