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    CVE-2025-11953

    The Metro Development Server, which is opened by the React Native Community CLI, binds to external interfaces by default. The server exposes an endpoint that is vulnerable to OS command injection. This allows unauthenticated network attackers to send a POST request to the server and run arbitrary executables. On Windows, the attackers can also execute arbitrary shell commands with fully controlled arguments.

    Published:Nov 3, 2025
    Last Modified:Feb 26, 2026
    EPS:Nov 3, 2025
    EPSS Score:0.0842
    CVSS Score:9.8

    CISA Notification

    Description

    The Metro Development Server, which is opened by the React Native Community CLI, binds to external interfaces by default. The server exposes an endpoint that is vulnerable to OS command injection. This allows unauthenticated network attackers to send a POST request to the server and run arbitrary executables. On Windows, the attackers can also execute arbitrary shell commands with fully controlled arguments.

    Required Action:

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Feb 26, 2026
    197 days ago
    Alert Date
    Feb 5, 2026
    218 days ago

    Affected Products

    Vendor
    Microsoft
    Product
    Windows
    Vendor
    React-native-community
    Product
    Cli
    Vendor
    React-native-community
    Product
    React Native Community Cli

    Exploits

    https://jfrog.com/blog/cve-2025-11953-critical-react-native-community-cli-vulnerabilityhttps://www.vulncheck.com/blog/metro4shell_eitwhttps://github.com/Ashwesker/Blackash-CVE-2025-11953https://github.com/B1ack4sh/Blackash-CVE-2025-11953https://github.com/boroeurnprach/CVE-2025-11953-PoChttps://github.com/GhoStZA-debug/PoC-CVE-collectionhttps://github.com/Mr-In4inci3le/CVE-2025-11953-POC-https://github.com/N3k0t-dev/PoC-CVE-collectionhttps://github.com/SaidBenaissa/cve-2025-11953-vulnerability-demo

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High