Zero-day alerts
Zero-day alerts for a SaaS stack (without ranking for “zero-day tracker”)
Updated 2026-08-28
True zero-days are rare in public feeds. For SaaS buyers, “zero-day alerts” should mean known-exploited (CISA KEV) plus critical CVEs on named vendors — not another research tracker.
The phrase is loaded. The job is not.
“Zero-day tracker” in search is already a research page (Axis Intelligence and others log pre-patch exploitation). That is journalism. A product for CIOs cannot out-encyclopedia the encyclopedia, and should not try. The buyer job is: tell me when something I use is being exploited, even if the industry will not call it a zero-day until next week.
Public feeds are late to “zero.” They are on time for “exploited.”
By the time a CVE is in NVD, it is often not a zero-day. By the time it is in KEV, CISA is saying exploitation is happening. That is the actionable public signal. Private intel platforms sell earlier. They also sell six figures. If your budget is $20, KEV-first is the honest product.
How ZeroDayTracker uses the words
We watch CISA KEV and recent critical NVD CVEs against a SaaS catalog and supplier graph. We do not claim to detect 0-days before CISA or the vendor. We claim you will not find out from a journalist that Okta or your cloud host was on the list. If you need pre-CVE research, you want a different vendor — and a different budget.
Watch the SaaS that holds your data.
Three tools free. Keep Track is $20/month for supplier blast-radius, full history, and a digest.