CVE-2025-11953

Name: CVE-2025-11953
Creator: NVD / NIST
Published: 2025-11-03T17:15:32.677+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 61.94%

Last modified Jun 17, 2026

CVE-2025-11953 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 61.94% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

61.94%

99.1th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Feb 26, 2026.

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions	Update
React-Native-Community	React Native Community Cli	>= 19.0.0, < 19.1.2	—
React-Native-Community	React Native Community Cli	18.0.0	—
React-Native-Community	React Native Community Cli	20.0.0	Alpha0

References

https://github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f68846a2ef20df547Patch
https://jfrog.com/blog/cve-2025-11953-critical-react-native-community-cli-vulnerabilityExploit, Mitigation, Third Party Advisory
https://x.com/SzymonRybczak/status/1986199665000566848Third Party Advisory
https://x.com/thymikee/status/1986770875954475375Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-11953US Government Resource
https://www.vulncheck.com/blog/metro4shell_eitwExploit, Third Party Advisory

Timeline

Published: Nov 3, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-11953?

How severe is CVE-2025-11953?

CVE-2025-11953 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 61.94% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2025-11953?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-11953?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST