CVE-2025-11953

CRITICAL CISA KEV
Published Nov 3, 2025 Modified Feb 6, 2026 CWE-78

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.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild.

Added: Feb 5, 2026 Remediation due: Feb 26, 2026

Weakness Type (CWE)

CWE-78 OS Command Injection

Affected Products

Vendor Product
react-native-community react_native_community_cli
react-native-community react_native_community_cli
react-native-community react_native_community_cli
react-native-community react_native_community_cli
react-native-community react_native_community_cli

References

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 9.8 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
How severe is CVE-2025-11953? +
CVE-2025-11953 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2025-11953? +
CVE-2025-11953 affects products from react-native-community, specifically: react_native_community_cli. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-11953? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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