# Citrix Bleed (CVE-2023-4966)

The EPSS history of Citrix Bleed, 0.99999 on every day shown.

Source: https://docs.deepinfo.com/reference/vulnerability/epss-history/examples/cve-2023-4966/

Last updated: 2026-09-24

---
`GET https://api.deepinfo.com/v1/explore/vulnerability-insight/epss-history/CVE-2023-4966`

The EPSS history of Citrix Bleed, 0.99999 on every day shown.

Example 3 of 5 · [EPSS History Examples](/reference/vulnerability/epss-history/examples/) · endpoint: [EPSS History](/reference/vulnerability/epss-history/)

Tags: `param` `cve` · `value` `CVE-2023-4966`

Asks for the EPSS history of `CVE-2023-4966` (Citrix Bleed).

## What to Notice

The API returned 1,061 days; the newest 10 all have `epss` 0.99999 and `percentile` 0.99998.

## Request

| Parameter | In | Value |
|---|---|---|
| `cve` | path | `CVE-2023-4966` |

```bash
curl 'https://api.deepinfo.com/v1/explore/vulnerability-insight/epss-history/CVE-2023-4966' \
  -H 'apikey: YOUR_API_KEY' \
  -H 'Accept: application/json'
```

## Response

### 200 · OK

> Shortened for this page: records: 10 of 1,061 shown

`Content-Type: application/json` · `ratelimit-limit: 1` · `ratelimit-remaining: 0` · `ratelimit-reset: 1` · `x-ratelimit-limit-second: 1` · `x-ratelimit-remaining-second: 0` · `deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a`

```json
{
  "cve": "CVE-2023-4966",
  "records": [
    {
      "epss": 0.99999,
      "percentile": 0.99998,
      "date": "2026-09-23"
    },
    {
      "epss": 0.99999,
      "percentile": 0.99998,
      "date": "2026-09-22"
    },
    {
      "epss": 0.99999,
      "percentile": 0.99998,
      "date": "2026-09-21"
    },
    {
      "epss": 0.99999,
      "percentile": 0.99998,
      "date": "2026-09-20"
    },
    {
      "epss": 0.99999,
      "percentile": 0.99998,
      "date": "2026-09-19"
    },
    {
      "epss": 0.99999,
      "percentile": 0.99998,
      "date": "2026-09-18"
    },
    {
      "epss": 0.99999,
      "percentile": 0.99998,
      "date": "2026-09-17"
    },
    {
      "epss": 0.99999,
      "percentile": 0.99998,
      "date": "2026-09-16"
    },
    {
      "epss": 0.99999,
      "percentile": 0.99998,
      "date": "2026-09-15"
    },
    {
      "epss": 0.99999,
      "percentile": 0.99998,
      "date": "2026-09-14"
    }
  ]
}
```

## Related Examples

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