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CVE-2025-11953

OS Command Injection: Is CVE-2025-11953 real, exploitable, or a false positive? Here's the community verdict.

Community verdict: No field verdicts yet. Be the first practitioner to weigh in.

signals

public sources

Exploited in wild
Yes
CISA KEV · Feb 5, 2026
Public exploit
PoC (unverified)
Metasploit/EDB/PoC
Base severity
9.8 Critical
CVSS
Exploitation prob.
94%
FIRST EPSS
Weakness
CWE-78 · OS Command Injection
CWE

Confirmed exploited in the wild. Patch this first, regardless of the base score.

cisa ssvc

CISA Vulnrichment · assessed

Exploitation
Active
in the wild
Automatable
Yes
at scale
Technical impact
Total
on success

CISA decision, by how critical the affected system is to you:

  • low impact → Attend
  • medium impact → Act
  • high impact → Act

Track: normal patch cycle · Track*: watch closely · Attend: patch sooner · Act: patch now. About SSVC ↗

public exploits

links to sources — we don’t host code

Unverified proof-of-concept code has been published. It may or may not be functional — assess before relying on it.

affected packages

GHSA-399j-vxmf-hjvr · GitHub rates it critical
  • npm@react-native-community/cli
    Vulnerable
    ≥ 20.0.0-alpha.0, < 20.0.0; ≥ 19.0.0-alpha.0, < 19.1.2; ≥ 18.0.0, < 18.0.1
    Fixed in
    20.0.0, 19.1.2, 18.0.1
  • npm@react-native-community/cli-server-api
    Vulnerable
    ≥ 20.0.0-alpha.0, < 20.0.0; ≥ 19.0.0-alpha.0, < 19.1.2; ≥ 18.0.0, < 18.0.1
    Fixed in
    20.0.0, 19.1.2, 18.0.1

Source: GitHub Advisory Database (CC-BY 4.0), via OSV.dev. Check your lockfile version against the ranges above.

baseline read

auto · not a community verdict

Real — exploited in the wild

CISA confirms active exploitation. Treat scanner hits as true positives unless your specific version or config is unaffected.

Based on CISA KEV

Confirm or dispute →

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Published · Added to CISA KEV (94 days after publication)

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timeline

  1. CISA SSVC assessment · exploitation: active
  2. Added to CISA KEV · confirmed exploited in the wild
  3. Added to VulnCheck KEV · reported exploited in the wild
  4. Published by NVD

Score and exploit changes tracked since .

Community ground truth

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In your experience, is this finding real and exploitable?

awaiting field verdicts
Real, but not a risk here
Not a real issue

Curated baseline: TruePositive's read from public sources is Real & exploitable — a starting point, not a community verdict.

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Field notes & remediation

Verdicts are the quick signal. Notes are the evidence and fixes behind them.

  • 0
    Field note · TruePositive EditorialCurated

    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. Listed in the CISA KEV catalog (added 2026-02-05) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~94%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · TruePositive EditorialCurated

    Required action for React Native Community CLI: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA set a federal remediation due date of 2026-02-26. After patching, verify the vulnerable path is no longer reachable before closing the finding.

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Same weakness: CWE-78 · OS Command Injection.