Risk Letters

Exploited vulnerability

CVE-2025-11953

TLP:CLEAR

React Native Community CLI OS Command Injection Vulnerability

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.

Facts

  • Vendor: React Native Community
  • Product: CLI
  • CVSS: 9.8
  • EPSS (probability of exploitation within 30 days): 94 %
  • On CISA's Known Exploited Vulnerabilities list since: 5 February 2026
  • First known exploitation: 5 February 2026
  • CISA's deadline for US federal agencies: 26 February 2026
  • Weakness: CWE-78
  • First seen by Risk Letters: 5 February 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD