CVE-2025-11953

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-02-05), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 3 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 94%CVSS: 9.8Exploit: cisa kev · ssvc active · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
94%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

November 3, 2025

Last Modified

February 6, 2026

Advisory Details (6)

Auto-updated Sep 17, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: github_commit, cisa.
generic🔴 Active Exploitation

Metro4Shell: Exploitation of React Native’s Metro Server in the Wild | Blog | VulnCheck

https://www.vulncheck.com/blog/metro4shell_eitw
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-11953
generic

Michał Pierzchała on X: "@sebastienlorber @SzymonRybczak This CVE is overblown and targets way more CLI versions than necessary. Others are fixed in point releases a @SzymonRybczak mentioned. Authors of the CVE haven't contacted us about it prior posting it. Not cool." / X

https://x.com/thymikee/status/1986770875954475375
generic

Szymon Rybczak on X: "As maintainer of React Native CLI I learned about this vulnerability today, and actually the issue only existed in two versions of CLI (v19, v18), so React Native v0.80 and v0.81. ‼️ Starting from CLI v9 (~3 years ago), so from React Native v0.70 URL validation was included t… / X

https://x.com/SzymonRybczak/status/1986199665000566848
generic

CVE-2025-11953 Critical RCE in React Native CLI

https://jfrog.com/blog/cve-2025-11953-critical-react-native-community-cli-vulnerability
github_commit Patch Available

commit 15089907d1f1 (react-native-community/cli)

Patch available: react-native-community/cli v20.0.0 (contains commit 15089907d1f1)

https://github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f68846a2ef20df547

Affected Packages

(2 across 1 ecosystem)
npm(2)
PackageVulnerable rangeFixed inDependents
@react-native-community/cli—18.0.1—
@react-native-community/cli-server-api—18.0.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 37× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 175 total refreshes for this CVE.

  1. 2026-09-21 23:42 UTCEG score recompute
  2. 2026-09-21 19:09 UTCCISA KEV update
  3. 2026-09-20 23:31 UTCEG score recompute
  4. 2026-09-20 20:14 UTCEPSS rescore
  5. 2026-09-18 19:20 UTCCISA KEV update
  6. 2026-09-18 14:15 UTCCISA KEV update
  7. 2026-09-17 22:52 UTCEG score recompute
  8. 2026-09-16 14:10 UTCCISA KEV update
  9. 2026-09-14 19:24 UTCCISA KEV update
  10. 2026-09-11 18:49 UTCCISA KEV update
  11. 2026-09-10 19:28 UTCCISA KEV update
  12. 2026-09-10 13:14 UTCEG score recompute
  13. 2026-09-10 09:33 UTCEPSS rescore
  14. 2026-09-09 19:08 UTCCISA KEV update
  15. 2026-09-08 18:54 UTCCISA KEV update
  16. 2026-09-06 16:16 UTCEG score recompute
  17. 2026-09-06 13:46 UTCEPSS rescore
  18. 2026-09-05 15:57 UTCEG score recompute
  19. 2026-09-04 17:38 UTCCISA KEV update
  20. 2026-09-02 17:33 UTCCISA KEV update
  21. 2026-09-01 14:48 UTCEG score recompute
  22. 2026-09-01 13:52 UTCEPSS rescore
  23. 2026-08-31 14:19 UTCCISA KEV update
  24. 2026-08-30 22:19 UTCEG score recompute
  25. 2026-08-30 19:16 UTCEPSS rescore
Show 75 more
  1. 2026-08-30 02:10 UTCEG score recompute
  2. 2026-08-30 01:21 UTCEPSS rescore
  3. 2026-08-28 21:51 UTCEG score recompute
  4. 2026-08-28 21:40 UTCEPSS rescore
  5. 2026-08-27 17:30 UTCEG score recompute
  6. 2026-08-27 17:22 UTCCISA KEV update
  7. 2026-08-27 14:24 UTCEPSS rescore
  8. 2026-08-26 17:41 UTCCISA KEV update
  9. 2026-08-24 18:52 UTCCISA KEV update
  10. 2026-08-24 16:46 UTCEG score recompute
  11. 2026-08-24 14:15 UTCEPSS rescore
  12. 2026-08-24 12:44 UTCEG score recompute
  13. 2026-08-22 00:14 UTCEG score recompute
  14. 2026-08-21 23:48 UTCEPSS rescore
  15. 2026-08-21 16:49 UTCCISA KEV update
  16. 2026-08-20 17:06 UTCCISA KEV update
  17. 2026-08-19 17:33 UTCCISA KEV update
  18. 2026-08-18 16:58 UTCCISA KEV update
  19. 2026-08-17 13:56 UTCCISA KEV update
  20. 2026-08-11 19:32 UTCCISA KEV update
  21. 2026-08-11 14:07 UTCEG score recompute
  22. 2026-08-11 13:41 UTCEPSS rescore
  23. 2026-08-09 17:45 UTCEG score recompute
  24. 2026-08-09 13:45 UTCEPSS rescore
  25. 2026-08-08 17:35 UTCEG score recompute
  26. 2026-08-07 17:25 UTCEG score recompute
  27. 2026-08-07 17:09 UTCCISA KEV update
  28. 2026-08-07 16:26 UTCEPSS rescore
  29. 2026-08-06 17:14 UTCEG score recompute
  30. 2026-08-06 13:45 UTCEPSS rescore
  31. 2026-08-05 17:25 UTCCISA KEV update
  32. 2026-08-04 17:02 UTCCISA KEV update
  33. 2026-08-04 16:48 UTCEG score recompute
  34. 2026-08-04 15:09 UTCEPSS rescore
  35. 2026-08-03 19:22 UTCCISA KEV update
  36. 2026-08-03 12:33 UTCEG score recompute
  37. 2026-08-03 10:35 UTCEPSS rescore
  38. 2026-08-01 08:05 UTCEG score recompute
  39. 2026-08-01 04:14 UTCEPSS rescore
  40. 2026-07-30 19:40 UTCEG score recompute
  41. 2026-07-30 16:26 UTCEPSS rescore
  42. 2026-07-30 11:37 UTCEG score recompute
  43. 2026-07-30 03:30 UTCEG score recompute
  44. 2026-07-30 01:29 UTCEPSS rescore
  45. 2026-07-29 19:27 UTCCISA KEV update
  46. 2026-07-28 19:07 UTCEG score recompute
  47. 2026-07-28 15:35 UTCEPSS rescore
  48. 2026-07-27 19:24 UTCCISA KEV update
  49. 2026-07-27 17:17 UTCCISA KEV update
  50. 2026-07-26 17:50 UTCEG score recompute
  51. 2026-07-26 14:53 UTCEPSS rescore
  52. 2026-07-26 13:48 UTCEG score recompute
  53. 2026-07-26 01:41 UTCEG score recompute
  54. 2026-07-25 14:17 UTCEPSS rescore
  55. 2026-07-24 14:16 UTCEPSS rescore
  56. 2026-07-23 14:17 UTCEPSS rescore
  57. 2026-07-23 02:48 UTCEG score recompute
  58. 2026-07-22 23:46 UTCEG score recompute
  59. 2026-07-22 19:40 UTCCISA KEV update
  60. 2026-07-22 15:41 UTCEG score recompute
  61. 2026-07-22 14:07 UTCEPSS rescore
  62. 2026-07-22 14:07 UTCEPSS rescore
  63. 2026-07-21 19:24 UTCEG score recompute
  64. 2026-07-21 15:24 UTCEPSS rescore
  65. 2026-07-21 14:37 UTCCISA KEV update
  66. 2026-07-20 19:11 UTCEG score recompute
  67. 2026-07-18 10:42 UTCEG score recompute
  68. 2026-07-18 10:03 UTCEPSS rescore
  69. 2026-07-17 10:30 UTCEG score recompute
  70. 2026-07-16 17:04 UTCCISA KEV update
  71. 2026-07-16 17:02 UTCEPSS rescore
  72. 2026-07-16 17:02 UTCEPSS rescore
  73. 2026-07-15 16:57 UTCEPSS rescore
  74. 2026-07-15 16:57 UTCEPSS rescore
  75. 2026-07-15 16:49 UTCCISA KEV update

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCSaidBenaissa/cve-2025-11953-vulnerability-demo
    First seen Nov 4, 2025

    CVE-2025-11953 demonstration: Critical RCE vulnerability in React Native CLI (CVSS 9.8). Educational security research with proof-of-concept exploits and mitigation strategies.

    Open source ↗
  • Nucleihttp/cves/2025/CVE-2025-11953.yaml
    First seen Jan 1, 2025

    React Native Community CLI - Unauthenticated OS Command Injection

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2025-11953?
CVE-2025-11953 is a critical vulnerability published on November 3, 2025. 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…
When was CVE-2025-11953 disclosed?
CVE-2025-11953 was first published in the National Vulnerability Database on November 3, 2025, with the most recent update on February 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-11953 actively exploited?
Yes. CISA added CVE-2025-11953 to the Known Exploited Vulnerabilities catalog on February 5, 2026, affecting React Native Community CLI. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-11953?
CVE-2025-11953 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2025-11953?
CVE-2025-11953 affects React Native Community CLI. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2025-11953?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-11953, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-11953

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