What is CVE-2025-11953?

CVE-2025-11953 is a critical-severity vulnerability, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-11-03.

How severe is CVE-2025-11953?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-11953 known to be exploited?

Yes. CVE-2025-11953 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-02-05), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

CVE-2025-11953

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 attack…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.279 (96.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Weakness classification (CWE)

CWE-78 — OS Command Injection

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2026-02-05. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2026-02-26.

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.

Public proof-of-concept exploits

References

jfrog.com/blog/cve-2025-11953-critical-react-native-community-cli-vulnerability (technical-description)
github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f68846a2ef2… (patch)

Frequently asked questions

What is CVE-2025-11953?: CVE-2025-11953 is a critical-severity vulnerability, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-11-03.
How severe is CVE-2025-11953?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-11953 known to be exploited?: Yes. CVE-2025-11953 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-02-05), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.