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CVEDB vs VulDB

Same instrument, two spec sheets — measured, not claimed.

APICVEDBHEALTHY98VulDBHEALTHY94
Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d98.3%100%
P50 · ms217360
P95 · ms8011138
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CVEDB vs VulDB: common questions

Which is more reliable, CVEDB or VulDB?

On our scheduled checks, VulDB leads on measured uptime — CVEDB at 99.02% versus VulDB at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, CVEDB or VulDB?

CVEDB has the lower median latency in our checks — CVEDB responds in 217 ms versus VulDB at 360 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do CVEDB and VulDB need an API key?

CVEDB needs no key, while VulDB requires a free API key. If you want to start calling without signup, reach for CVEDB first.

Can I call CVEDB and VulDB from the browser?

Only VulDB is browser-friendly — it returns CORS headers over HTTPS. CVEDB needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are CVEDB and VulDB free for commercial use?

CVEDB has unclear commercial terms, and VulDB has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.