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2 vulnerabilities found for x64dbg-mcp-server by duty1g

CVE-2026-107824 (GCVE-0-2026-107824)
Vulnerability from cvelistv5
Published
2026-10-09 17:45
Modified
2026-10-14 02:07
Severity ?
9.3 (Critical) - 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
CWE
  • CWE-306 - Missing Authentication for Critical Function
Summary
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.
References
Impacted products
Vendor Product Version
duty1g x64dbg-mcp-server Version: < 1.1
 Create a notification for this product.
Show details on NVD website

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CVE-2026-107820 (GCVE-0-2026-107820)
Vulnerability from cvelistv5
Published
2026-10-09 17:42
Modified
2026-10-13 17:05
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-190 - Integer Overflow or Wraparound
Summary
x64dbg-MCP Server is a native Model Context Protocol (MCP) plugin for x64dbg that exposes the debugger's full functionality over HTTP. Prior to 1.2, src/core/mcp_server.zig parses an unbounded Content-Length value in parseContentLength() and uses it in unchecked usize addition in wsRecv() before token authentication. The server listens on 0.0.0.0 by default in affected versions. An unauthenticated network client can supply a near-maximum Content-Length value to trigger a runtime integer-overflow panic in Debug and ReleaseSafe builds, terminating the entire x64dbg process and its live debugging session. The overflowed value is used only in a comparison, so the impact is limited to denial of service rather than memory corruption or code execution. This issue is fixed in version 1.2.
References
Impacted products
Vendor Product Version
duty1g x64dbg-mcp-server Version: < 1.2
 Create a notification for this product.
Show details on NVD website

To clipboard 

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