# EPSS History Examples

Worked EPSS History examples: the daily exploit prediction score of well-known and recent CVEs.

Source: https://docs.deepinfo.com/reference/vulnerability/epss-history/examples/

Last updated: 2026-09-24

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`GET https://api.deepinfo.com/v1/explore/vulnerability-insight/epss-history/{cve}` · endpoint: [EPSS History](/reference/vulnerability/epss-history/)

Worked examples for EPSS History: each one asks for the EPSS score history of one CVE, given in the path.

EPSS (Exploit Prediction Scoring System, FIRST) estimates the probability that a CVE is exploited in the wild in the next 30 days. `records[].epss` is that probability (0 to 1), `records[].percentile` ranks it among every scored CVE and `records[].date` is the day of the score; the newest day comes first.

Responses are trimmed for display: `records` shows the newest 10 days, except for CVE-2026-86218 and CVE-2026-9508, whose whole histories (18 and 117 days) are shown; each page says what was shortened.

Each example links to its own page with the request and the response.

| Example | CVE |
|---|---|
| [Log4Shell (CVE-2021-44228)](/reference/vulnerability/epss-history/examples/cve-2021-44228/) | `CVE-2021-44228` |
| [Heartbleed (CVE-2014-0160)](/reference/vulnerability/epss-history/examples/cve-2014-0160/) | `CVE-2014-0160` |
| [Citrix Bleed (CVE-2023-4966)](/reference/vulnerability/epss-history/examples/cve-2023-4966/) | `CVE-2023-4966` |
| [A CVE in the CISA KEV Catalog (CVE-2026-86218)](/reference/vulnerability/epss-history/examples/cve-2026-86218/) | `CVE-2026-86218` |
| [A Recent CVE With a Low Score (CVE-2026-9508)](/reference/vulnerability/epss-history/examples/cve-2026-9508/) | `CVE-2026-9508` |