CVE-2025-66478

Rejected reason: This CVE is a duplicate of CVE-2025-55182.

This CVE has been withdrawn. NVD marks this identifier as Rejected, which means it was a duplicate or turned out not to be a vulnerability. The analysis below is kept for reference only — do not act on it.

CVSS: Not scored yetNVD has not published a score
Exploited in the wild: Not knownPublic exploit code; not in CISA KEV
EPSS: No score yet
Fix: Not stated by the vendorno fixed release in the CVE record
Published: 3 Dec 2025analysed here 12 Nov 2026

NVD hasn't published a CVSS score for this CVE yet. Severity and the CVSS vector appear here once it is scored upstream.

Fix and mitigation

Remediation steps (AI-written)

Step-by-step remediation is generated for accounts on the Max plan, for CVEs that match a technology in their stack. Add this technology to your stack to see the fix checklist.

Exploitation evidence

CISA KEV catalog: Not listed as of our last sync.
Public exploit code: Yes: 1 Metasploit module · 25 GitHub proofs of concept

Metasploit

exploit/multi/http/react2shell_unauth_rce_cve_2025_55182exploit, rank excellent

GitHub proofs of concept

Malayke/Next.js-RSC-RCE-Scanner-CVE-2025-66478429 stars
vercel-labs/fix-react2shell-next403 stars
hackersatyamrastogi/react2shell-ultimate158 stars
abtonc/next-cve-2025-6647811 stars

and 21 more repositories

Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.

Timeline

1 Oct 2025First public exploit or proof of concept
3 Dec 2025CVE record last updated64 days (about 2 months) later
3 Dec 2025Publishedsame day later
12 Nov 2026Analysed by vulneraibility.com344 days (about 11 months) later

References

NVD CVE.org CVE Details Source

Where the data on this page comes from

CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
NVD: CVSS and CPE data
FIRST EPSS: exploit probability and percentile
Metasploit Framework: exploit and scanner modules
PoC-in-GitHub: GitHub repositories that claim a proof of concept

Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.

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