CVE Checker

About

CVE Checker gives you instant vulnerability intelligence without leaving the page. Highlight any CVE ID on any webpage - a button appears with full details inline. No API keys, no accounts, no tracking.
How it works
🖱️ Highlight any CVE ID on any page - a blue button appears, click for full details inline
🔍 Or open the popup, type a CVE ID and press Enter - auto-fills if you had text selected
What you get for every CVE
📊 CVSS score (v2.0 / v3.x / v4.0) with color-coded severity ring and full vector breakdown
⚡ CISA KEV status - confirms active in-the-wild exploitation with the date it was added
📈 EPSS exploitation probability and percentile rank among all CVEs
🩹 Patch detection - direct vendor patch links extracted from NVD references
🕐 Timeline - publish date, KEV listing date, days-to-KEV, and total CVE age
💣 Exploit search - GitHub PoC repos, Exploit-DB, Vulners, Nuclei templates (pre-filtered, no login)
📄 Full NVD references with tags: Patch, Exploit, Mailing List, Vendor Advisory
Extra features
🕓 Search history - last 10 lookups saved locally, one click to reload
⚖️ Compare two CVEs side by side - red/green diff on CVSS, EPSS, KEV, age, attack vector
📋 Jira export - one click copies a ready-to-paste Wiki Markup ticket with full CVSS table and patch links
🔢 Page badge - icon shows count of unique CVE IDs found on the current page, updates automatically
Data sources
All data pulled live from NVD (NIST), FIRST.org EPSS, CISA KEV catalog, and CIRCL. Nothing is sent anywhere else. Search history stays on your machine.

🔒 Privacy
▸ No telemetry, no analytics, no crash reports, no usage statistics
▸ No third-party scripts, no CDN, no external fonts
▸ Outbound requests only to 4 public APIs: NVD · FIRST.org · CISA · CIRCL
▸ Search history stored locally in your browser - never leaves your device
▸ What you look up stays yours