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CVE-2025-11953

React Native Community CLI OS Command Injection

9.8 CRITICALActively exploited (CISA KEV)Public exploitEPSS 94.0%
  1. Published3 Nov 2025
  2. Added to CISA KEV5 Feb 2026
  3. Remediation due26 Feb 2026
Actively exploited (CISA KEV)

React Native Community CLI contains an OS command injection vulnerability which could allow unauthenticated network attackers to send POST requests to the Metro Development Server and run arbitrary executables via a vulnerable endpoint exposed by the server. On Windows, attackers can also execute arbitrary shell commands with fully controlled arguments.

Added to KEV: 5 Feb 2026Federal remediation due: 26 Feb 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

React-native-community React Native Community Cli≥ 19.0.0 < 19.1.2 · 18.0.0 · 20.0.0

Remediation

Fixed in
React-native-community React Native Community Cli≥ 19.1.2

References

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Frequently asked

Is CVE-2025-11953 being actively exploited?

Yes. CVE-2025-11953 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 5 Feb 2026.

How severe is CVE-2025-11953?

CVE-2025-11953 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 94.0% probability of exploitation.

Which products are affected by CVE-2025-11953?

Affected products include React-native-community React Native Community Cli.

How do I fix CVE-2025-11953?

Upgrade affected software to a fixed version, for example React-native-community React Native Community Cli 19.1.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-11953 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.