EPSS exploit-probability score and percentile for up to 10 CVEs, ranked, with a ...
https://vuln-intel.x402tookit.com/epss-scoreOverview
EPSS exploit-probability score and percentile for up to 10 CVEs, ranked, with a high/elevated/low verdict.
Protocol
x402
Price
$0.02
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Vulnerability Intelligence
Source
bazaar
Indexed
2026-10-20 21:22:34
Health
Status
healthy
Latency (p50)
563ms
Uptime (30d)
87.5%
Reliability Score
83.8/100
Last Checked
2026-10-28 06:43:26
Last Healthy
2026-10-28 06:43:26
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"cves": "CVE-2021-44228,CVE-2023-4863"
},
"type": "http"
}
Output Schema
{
"example": {
"asOf": "2026-10-23T03:17:23.209Z",
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"actual exploitation (see /kev-check)",
"severity"
],
"reasons": [
"EPSS estimates the chance of exploitation activity in the next 30 days; it is not severity.",
"EPSS is provided by FIRST (first.org/epss)."
],
"scores": [
{
"asOf": "2026-10-22",
"cve": "CVE-2021-44228",
"percentile": 1,
"probability": 0.99999
},
{
"asOf": "2026-10-22",
"cve": "CVE-2023-4863",
"percentile": 0.99981,
"probability": 0.99979
}
],
"source": "FIRST EPSS",
"sourceUrl": "https://api.first.org/data/v1/epss",
"summary": "Highest: CVE-2021-44228 at 100% (percentile 100).",
"thresholds": {
"elevatedAtLeast": 0.1,
"highAtLeast": 0.5
},
"verdict": "HIGH_EXPLOIT_PROBABILITY"
},
"type": "json"
}