CVE-2026-107824 x64dbg-MCP Server exposes debugger operations to unauthenticated network clients
Unauthenticated network clients can execute arbitrary debugger commands and access memory via the x64dbg-MCP Server's default HTTP interface.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-107824?
CVE-2026-107824 is a critical missing authorization vulnerability in duty1g x64dbg-mcp-server, published on 9 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-306
Which versions are affected by CVE-2026-107824?
How do I fix CVE-2026-107824?
No fix has been published for CVE-2026-107824 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-107824 being exploited?
There is no known exploitation of CVE-2026-107824 in the wild and no public exploit code.