CVE-2025-11202Network attack vector

Unauthenticated code execution via resolveCommandPath shell interpolation

Published Oct 29, 2025 · Updated Oct 29, 2025

OS command injection in Windows CLI MCP Server at revision 215f0cc allows remote attackers to execute code without authentication. resolveCommandPath embeds its command argument inside a quoted where command and passes the resulting string to child_process.exec, allowing shell metacharacters in the argument to alter the system call. The code executes with the service account's privileges, but the upstream fix states that the function was unused throughout the production codebase, so default server reachability is not established.

CVSS severity9.8
Critical
EPSS probability2.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Windows CLI MCP Server at revision 215f0cc allows remote attackers to execute code without authentication. resolveCommandPath embeds its command argument inside a quoted where command and passes the resulting string to child_process.exec, allowing shell metacharacters in the argument to alter the system call. The code executes with the service account's privileges, but the upstream fix states that the function was unused throughout the production codebase, so default server reachability is not established.

The record

CVE
CVE-2025-11202
Published
Oct 29, 2025
Updated
Oct 29, 2025
Vendor
Simon Benedict
Product
Windows CLI MCP Server
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=215f0cc4ed0c21ce028246c19ebfa32f5b3f7848

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Simon Benedict · Windows CLI MCP Serverversion=215f0cc4ed0c21ce028246c19ebfa32f5b3f7848

Published CVSS scores

9.8Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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