SARA / Free Tools / CVE / CVE-2025-11953

CVE-2025-11953 — React Native Community CLI OS Command Injection Vulnerability

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

CVSS
9.8 CRITICAL
EPSS
3.36% (top 12.80%)
CWE
CWE-78
Published
2025-11-03T16:35:07.168Z
Last modified
2026-02-26T17:47:39.982Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA KEV — Actively Exploited
Added to KEV
2026-02-05
BOD 22-01 due
2026-02-26
Ransomware use
Unknown
View KEV detail
CVE-2025-11953 on CISA KEV →

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
??4.8.0

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2026-02-05. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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