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CVE-2023-40710

Status: ModifiedHigh (7.5)—

An adversary could cause a continuous restart loop to the entire device by sending a large quantity of HTTP GET requests if the controller has the built-in web server enabled but does not have the built-in web server completely set up and configured for the SNAP PAC S1 Firmware version R10.3b

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Opto22 — Snap PAC S1 Firmware

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-40710",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2023-40710",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
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              "automatable": "no"
            },
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              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-09-30T19:09:00.954993Z"
        }
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    "cvssMetricV31": [
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
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  "published": "2023-08-24T17:15:09.253",
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      "tags": [
        "Third Party Advisory",
        "US Government Resource"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
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      "source": "ot-cert@dragos.com",
      "description": [
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          "lang": "en",
          "value": "CWE-770"
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    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
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          "value": "CWE-400"
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      "lang": "en",
      "value": "An adversary could cause a continuous restart loop to the entire device by sending a large quantity of HTTP GET requests if the controller has the built-in web server enabled but does not have the built-in web server completely set up and configured for the SNAP PAC S1 Firmware version R10.3b"
    }
  ],
  "lastModified": "2026-06-17T06:19:11.230",
  "configurations": [
    {
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  "sourceIdentifier": "ot-cert@dragos.com"
}