Free Next.js RCE Vulnerability Scanner: Detect CVE-2025-55182 Before Attackers Do

A critical Remote Code Execution (RCE) vulnerability has been discovered in Next.js applications using React Server Components (RSC) and Server Actions. Tracked as CVE-2025-55182, this vulnerability allows attackers to execute arbitrary code on vulnerable servers, potentially leading to complete system compromise.

At Cyber AR, we believe security should be accessible to everyone. That's why we've launched a completely free vulnerability scanner to help you detect if your Next.js applications are affected by this critical security flaw.

What is CVE-2025-55182?

CVE-2025-55182 is a critical Remote Code Execution vulnerability affecting Next.js applications that use:

• React Server Components (RSC) - The new paradigm for building React applications with server-side rendering
• Server Actions - Functions that execute on the server, introduced in Next.js 13+

The vulnerability stems from prototype pollution attacks that can be exploited through specially crafted requests to Server Actions. When successfully exploited, attackers can execute arbitrary code on your server, leading to:

• Data breaches - Access to sensitive user data and business information
• Server compromise - Full control over your application server
• Lateral movement - Potential access to other systems in your network
• Ransomware attacks - Encryption of your data and extortion attempts

How Our Free Scanner Works

Our scanner is designed to be simple, fast, and non-destructive:

1. Enter Your Details

Provide your name, email address, and the target website URL you want to scan. We require email verification to ensure you have authorization to scan the target.

2. Email Verification

We send a verification code to your email address. This step confirms your identity and ensures that scan requests are legitimate.

3. Receive Results

Once verified, our scanner sends specially crafted payloads to detect vulnerability indicators in the response. The test is non-destructive and only checks for vulnerability signatures without exploiting them.

Results are delivered directly to your email within minutes, including:

• Vulnerability status (Vulnerable / Not Vulnerable / Inconclusive)
• Technical details about the detection
• Remediation recommendations

Why We Built This Scanner

The React2Shell vulnerability research by Assetnote revealed the severity of this issue, and Vercel quickly released patches. However, many applications remain unpatched, leaving them exposed to potential attacks.

We built this scanner because:

• Speed matters - Organizations need to quickly assess their exposure
• Accessibility - Not everyone has the resources for expensive security tools
• Awareness - Helping the community understand and address this threat

Our scanner is based on the Assetnote Security Research and adapted to provide a user-friendly experience.

Available Security Scanners

The Next.js RCE Scanner is the first in our series of free security scanners. We're committed to helping organizations identify vulnerabilities before attackers do.

Coming Soon

We're actively developing additional scanners:

• SSL/TLS Configuration Scanner - Analyze weak ciphers, expired certificates, and misconfigurations
• Subdomain Enumeration Scanner - Discover hidden subdomains and attack surfaces
• Security Headers Scanner - Check for missing or misconfigured security headers

How to Protect Your Application

If our scanner detects that your application is vulnerable, here are immediate steps to take:

1. Update Next.js

Upgrade to the latest patched version of Next.js. Vercel has released security patches addressing CVE-2025-55182.

npm update next
# or
yarn upgrade next
# or
pnpm update next

2. Review Server Actions

Audit your Server Actions for proper input validation and sanitization. Ensure you're not passing untrusted data directly to sensitive operations.

3. Implement Web Application Firewall (WAF)

Consider deploying a WAF to filter malicious requests targeting prototype pollution patterns.

4. Monitor for Suspicious Activity

Enable logging and monitoring to detect potential exploitation attempts.

CVE-2025-55182 Resources

For more information about this vulnerability, refer to these official resources:

• NVD: Official CVE Details
• Vercel: Official Changelog & Advisory
• React2Shell: Vulnerability Research & PoC
• GitHub: React Security Advisory

Start Your Free Scan Today

Don't wait until it's too late. Scan your Next.js applications now and ensure they're protected against CVE-2025-55182.

Key Benefits:

• 100% Free - No credit card required, no hidden fees
• Instant Results - Get your vulnerability report within minutes
• Privacy First - We only scan what you authorize, your data is never shared
• Non-Destructive - Safe testing that won't affect your application

Conclusion

The discovery of CVE-2025-55182 serves as a reminder that even modern frameworks can have critical vulnerabilities. Proactive security testing is essential to protect your applications and users.

At Cyber AR, we're committed to making security accessible. Our free Next.js RCE Scanner is just the beginning. Stay tuned for more free security tools and resources.

Ready to scan your application? Start your free scan now and protect your Next.js applications before attackers strike.

Need comprehensive security testing? Contact Cyber AR for professional penetration testing and vulnerability assessment services.