Critical 9.3Published Oct 9, 2026

CVE-2026-107824x64dbg-MCP Server exposes debugger operations to unauthenticated network clients

Updated under an hour ago (2026-10-19 07:30 UTC)

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It affects duty1g x64dbg-mcp-server. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.40%, higher than 33% of scored CVEs.

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Every CVE for duty1g x64dbg-mcp-server

Exploited in the last 30 days

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.

CVSS: 9.3 CRITICAL (v4.0, CNA)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
Weakness (CWE): CWE-306
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.40% (percentile 33)
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

duty1g x64dbg-mcp-server duty1g:x64dbg_mcp_server (from the name)	before 1.1	CNA record

References

https://github.com/duty1g/x64dbg-mcp-server/security/advisories/GHSA-4478-h5jv-647mx-refsource-confirm
https://github.com/duty1g/x64dbg-mcp-server/security/advisories/GHSA-jgj3-97w2-9v9rx-refsource-misc
https://github.com/duty1g/x64dbg-mcp-server/commit/1aad0f88b9c27233d11dbccf08ca415eb5f49203x-refsource-misc
https://github.com/duty1g/x64dbg-mcp-server/commit/e1daba0038959f88d25ff3376b2a7f922ffeb448x-refsource-misc
https://github.com/duty1g/x64dbg-mcp-server/releases/tag/1.0x-refsource-misc
https://github.com/duty1g/x64dbg-mcp-server/releases/tag/v1.1x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.