Page generated: 08 Nov 2026, 10:39 UTC
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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 …

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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.
CVSS 9.8 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.9/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.8: +1.47
  • Fresh EPSS: 93.98%: +0.47

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 11 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Check Point Research
Press · 09 Feb 2026, 08:00 · 9th February – Threat Intelligence Report - Check Point Research
CyberSecurityNews
Press · 08 Feb 2026, 08:00 · Cybersecurity Weekly Newsletter - Notepad++ hack, Office 0-Day, ESXi 0-day Ransomware Attacks and More - CyberSecurityNews
Security Affairs
Press · 03 Feb 2026, 08:00 · Hackers abused React Native CLI flaw to deploy Rust malware before public disclosure - Security Affairs
The Hacker News
Press · 03 Feb 2026, 08:00 · Hackers Exploit Metro4Shell RCE Flaw in React Native CLI npm Package - The Hacker News
SecurityWeek
Press · 03 Feb 2026, 08:00 · Critical React Native Vulnerability Exploited in the Wild - SecurityWeek
See all 11 source documents
BleepingComputer
Press · 03 Feb 2026, 08:00 · Hackers exploit critical React Native Metro bug to breach dev systems - BleepingComputer
CCB Belgium
Press · 05 Nov 2025, 08:00 · Warning: Critical React Native CLI vulnerability, Patch Immediately! - CCB Belgium
SecurityWeek
Press · 04 Nov 2025, 08:00 · Critical Flaw in Popular React Native NPM Package Exposes Developers to Attacks - SecurityWeek
The Hacker News
Press · 04 Nov 2025, 08:00 · Critical React Native CLI Flaw Exposed Millions of Developers to Remote Attacks - The Hacker News
Techerati
Press · 04 Nov 2025, 08:00 · Critical React Native CLI Vulnerability Exposes Developers to Remote Attacks - Techerati
CyberSecurityNews
Press · 04 Nov 2025, 08:00 · Critical RCE Vulnerability in Popular React Native NPM Package Exposes Developers to Attacks - CyberSecurityNews

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.9 (2026-11-02 15:13). The curve appears once the score changes.

Public exploit evidence

2

Public exploit entries / repo candidates

See 2 repos with metrics
RepositoryStarsForksLanguageUpdated
boroeurnprach/CVE-2025-11953-PoC00JavaScript21 Jan 2026, 02:27
Mr-In4inci3le/CVE-2025-11953-POC-00JavaScript12 Jan 2026, 10:16
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 9.8; EPSS 94.0%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:59:26.399385+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
03 Nov 2025, 16:35
First press mention
04 Nov 2025, 08:00
Added to the CISA KEV catalog
05 Feb 2026, 00:00
Latest press mention
09 Feb 2026, 08:00
Score calculated
05 Nov 2026, 13:59
PoCs on GitHub
2 repositories