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.
The record classifies CVE-2025-11953 under weakness class CWE-78. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 5 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 367 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 9.8 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS (FIRST)
- 93.9% probability of exploitation in the next 30 days, higher than 99.8% of all scored CVEs
- CISA KEV
- Listed since 2026-02-05, federal remediation deadline 2026-02-26
- Threadlinqs priority
- 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
- Published
- 2025-11-03, last modified 2026-02-26
Is CVE-2025-11953 being exploited?
CISA added CVE-2025-11953 to the Known Exploited Vulnerabilities catalog on 2026-02-05, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2026-02-26 under BOD 22-01. Weaponised exploit code for CVE-2025-11953 is publicly available. 4 public proof-of-concept repositories are tracked for this identifier. A ProjectDiscovery Nuclei detection template exists (http/cves/2025/CVE-2025-11953.yaml). It currently carries a trending score of 50 in the Threadlinqs vulnerability feed.
- SaidBenaissa/cve-2025-11953-vulnerability-demo (github)
- Mr-In4inci3le/CVE-2025-11953-POC- (github)
- boroeurnprach/CVE-2025-11953-PoC (github)
- trickest/cve (trickest)
Affected products and versions
- React-native-community: React Native Community Cli, React Native Community Cli 18.0.0, React Native Community Cli 20.0.0
Showing 3 of 5 recorded product entries.
How to fix CVE-2025-11953
The record marks a vendor fix as available for CVE-2025-11953. Patch reference: https://github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f68846a2ef20df547. Vendor advisory: https://github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f68846a2ef20df547. Because CVE-2025-11953 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2026-02-26. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.
Threat activity tracking CVE-2025-11953
2 tracked threats in the Threadlinqs corpus reference CVE-2025-11953, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, NVD, FIRST EPSS, CISA KEV, public proof-of-concept repositories, ProjectDiscovery Nuclei. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.