Runtime Prevention

Most security tools only act after a vulnerability is documented, a CVE is issued, and detection logic is created. By then, attackers have already had their window. Runtime Prevention stops malicious execution inside the application before it ever runs - even when the vulnerability has no CVE yet, or hasn’t been discovered at all.

Because Raven operates inside the application runtime, it blocks illegitimate execution at the moment it would occur. This means known CVEs, unknown zero-days, supply-chain abuse in third-party libraries - all prevented before code ever runs. Raven doesn’t wait for signatures, disclosures, or alerts. If malicious execution is about to happen, it doesn’t run.

Book a Demo

Don't Wait For a Breach

It takes ~9 days for an OSS supplier to release a patch and 5 days for a vulnerability to be exploited. This means, organizations can no longer afford to wait for a breach to be detected before
taking action.

Raven vs WAF

Requires Code?

Resource

Time to Solution

False Negative

Protocol

Deployment

Protection Quality

SecOps

Up to a minute

None

All Protocols

Library Level

100%

WAF

Yes

Experienced Engineer

Couple of days

Many

Http

Network

Partial

Accelerate Incident Remediation

Save
Engineering
Time

Independent of OSS
Maintainers

Independent of 3rd Party Application Vendors

FAQ

What is runtime virtual vulnerability patching?

Runtime virtual vulnerability patching is a runtime security solution that protects applications from known vulnerabilities without changing the underlying code. It creates a virtual barrier around the vulnerability, stopping exploitation while allowing the application to function normally.

How does Raven's virtual patching differ from WAFs?

Raven's virtual patching offers more precise protection by focusing on specific vulnerabilities, while WAFs use broader rule sets. Raven's solution adapts in real-time to new threats and causes fewer false positives than WAFs.

Can virtual patching replace traditional software updates?

While virtual patching provides primary protection, it's not a permanent replacement for software updates. It's best used temporarily until proper code fixes can be implemented.

What types of vulnerabilities can Raven's virtual patching address?

Raven's virtual patching solution can address many vulnerabilities, including SQL injection, cross-site scripting (XSS), remote code execution, and many others that affect web applications and APIs

How quickly can Raven implement virtual patches?

Raven can implement virtual patches almost immediately, often within minutes of finding a vulnerability. This quick comeback significantly reduces applications' window of exposure.

Does using Raven's virtual patching impact application performance?

Raven's virtual patching is designed to have minimal impact on application performance. In most cases, users won't notice any difference in speed or functionality.

How does Raven's solution handle false positives compared to WAFs?

Raven's targeted practice of virtual patching typically results in fewer false positives than traditional WAFs. The system focuses on specific vulnerabilities rather than broad pattern matching, reducing the likelihood of blocking legitimate traffic.

Can Raven's virtual patching protect legacy applications?

Raven's virtual patching is particularly useful for legacy applications that may be difficult or risky to update. It can provide an additional layer of security without requiring changes to the original codebase.

How does Raven stay updated on new vulnerabilities?

Raven uses a combination of automated threat intelligence gathering, machine learning, and human expertise to continuously update its vulnerability database and create new virtual patches as threats emerge.

Our Language Support

Blog

Security

A deep analysis of React2Shell (CVE-2025-55182) RCE in RSC Flight protocol—and why WAF rule patches fail to protect modern React and Next.js apps.