Threats / React Native Community / CVE-2025-11953
CVE-2025-11953
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-09-19
React Native Community CLI vulnerability
React Native Community CLI contains an OS command injection vulnerability in the Metro Development Server that allows unauthenticated attackers to execute arbitrary commands via POST requests to a vulnerable endpoint.
Verdict
Today item — known-exploited.
Unauthenticated remote attackers can inject and execute arbitrary OS commands on systems running the affected CLI, particularly on Windows where shell command execution with controlled arguments is possible. Active exploitation has been observed.
CISA KEV Yes · 2026-02-055EPSS 0.9398 (verify live)6Exploit Weaponized · public PoC7CVSS 9.83CISA SSVC Exploitation: active · Automatable: yes · Impact: total4
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Fully weaponized — public exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
8 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-02-05).
Probability (EPSS)
EPSS 0.9398 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) · Affected: React Native Community, CLI. Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 3.1, set at disclosure.
Weakness (CWE)
Mapped to CWE-78 OS Command Injection — weakness family: Injection.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: yes · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 94 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I send a crafted POST request to the exposed Metro Development Server endpoint containing injected OS commands.
Business
Development infrastructure is compromised, allowing unauthorized code execution on developer machines and build systems.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I execute arbitrary executables or shell commands with full argument control, particularly on Windows systems.
Business
Attackers gain ability to deploy malware, exfiltrate source code, or pivot to internal networks from compromised development environments.
3
Lateral reach — past segmentation narrative 3
Attacker
I leverage the unauthenticated nature of the endpoint to attack any system running the vulnerable CLI without credentials.
Business
Attack surface expands across all organizations using React Native Community CLI in development workflows, increasing incident response burden.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05
Coverage & confidence
— what we know, and what we don’tEstablished (cited)
Coverage gaps — stated, not hidden
Disclosure & credit2
Catalogued by JFROGCNA
Credited with finding itNo finder is named in the public CVE record or the scanned vendor advisory — attribution scoped to the sources checked.
Found an error? Propose a correction.
A correction is a cited counter-claim — it must cite a source,
gets reviewed by a second human, and is never auto-applied. See the
correction convention and our identity
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