Most vulnerability and EASM tools rely on CVE feeds: NVD, vendor advisories, and threat intel that references published CVEs. That's essential, but it can be reactive when upstream exploit, release, or advisory signals appear before CVE metadata is complete.
The gap
Maintainers often publish security releases and patch notes on GitHub (or elsewhere) before a CVE is assigned. Exploit-DB and other sources list new exploits that may not yet have a CVE. If your tooling only reacts to CVEs, you're always behind.
Asset-specific correlation
Generic threat feeds also create alert fatigue: you get notified about every new WordPress CVE even if you don't run WordPress. We correlate threats with technologies we actually detect on your attack surface, reducing irrelevant name-only matches.
Bottom line
CVE-only detection is necessary but not sufficient. Adding upstream monitoring (GitHub, Exploit-DB) and asset-specific correlation maps upstream exploit, release, and advisory signals to observed technologies, sometimes before CVE metadata is complete.