ZeroDayTracker

Honest comparison

vulntracker.io vs ZeroDayTracker: every CVE vs exploited-first

vulntracker.io is a CPE watchlist for people who want every CVE on the software they run. ZeroDayTracker is a KEV watchtower for people who want to know when CISA says a tool in their SaaS stack — or the vendor behind it — is being exploited.

vulntracker.io is a trademark of its owner. Their site. Facts from public pages as of 2026; products change.

FeatureZeroDayTrackervulntracker.io
CoverageCurated SaaS catalog + graphFull CPE / vendor / keyword tracking
Default signalExploited (KEV) + critical NVDEvery matching CVE
BuyerCIO / founder / lean CISOFounders and DevOps who patch
PriceFree / $20/moFree browse; paid from $15/mo
AgentsNoneNone

Pick ZeroDayTracker if

  • You do not want an inbox of every Microsoft or Linux CVE.
  • Your “stack” is SaaS logos (Okta, Salesforce, M365), not a CPE inventory.
  • You want supplier matches (GitHub → Microsoft, Auth0 → Okta) without extra keywords.
  • You want CISA’s required action on the briefing, not a Kanban of all CVEs.

Pick vulntracker.io if

  • You run specific product versions and want every CVE against full CPE coverage.
  • You want EPSS-enriched CVE cards, Telegram alerts, and a triage board.
  • You are a DevOps team patching software you install, not a CIO watching vendors.

Every CVE is a product. It is not this product.

cvefeed.io, ThreatWise, and vulntracker.io compete to notify you fastest when NVD publishes. That race produces volume. Our race is different: when CISA adds a name you pay, or a supplier you depend on, you get a briefing a board can read.

CPE vs catalog

A blank CPE search box is powerful and easy to misconfigure. We do not offer one. You pick Okta, Slack, Salesforce. We maintain aliases and the graph. Less coverage of random on-prem products. Better coverage of the SaaS you meant.

Other comparisons: OpenCVE · Sentrytex · Recorded Future

Questions

Will ZeroDayTracker tell me about a CVSS 9 that is not in KEV?

If it is a recent critical NVD CVE that matches the catalog, yes. We do not ingest the entire NVD. vulntracker.io will show more CVEs. That is their job.

Can I use both?

Yes. Use vulntracker (or OpenCVE) for patch queues on software you operate. Use ZeroDayTracker for vendor KEVs on software you subscribe to.

Watch the SaaS that holds your data.

Three tools free. Keep Track is $20/month for supplier blast-radius, full history, and a digest.

Start watching — freePricing