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CVE-2020-23621

Status: ModifiedCritical (9.8)—
Severity9.8Critical · CVSS 3.1
Exploitation probability2.13 %higher than 82% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

The Java Remote Management Interface of all versions of SVI MS Management System was discovered to contain a vulnerability due to insecure deserialization of user-supplied content, which can allow attackers to execute arbitrary code via a crafted serialized Java object.

CVSS

Base score
9.8
Version
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
2.13 %
Percentile among all scored CVEs
82
Score date
10/20/2026

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)

Squire-technologies — SVI MS Management System

CWEs

References

Show 6 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2020-23621",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "version": "n/a"
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  ],
  "published": "2022-05-02T23:15:07.673",
  "references": [
    {
      "url": "https://gist.github.com/fuzzKitty/dd1c6fac4f36e70ea64814732726aaea",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/joaomatosf/jexboss",
      "tags": [
        "Third Party Advisory"
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.squire-technologies.co.uk/",
      "tags": [
        "Vendor Advisory"
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      "source": "cve@mitre.org"
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    {
      "url": "https://gist.github.com/fuzzKitty/dd1c6fac4f36e70ea64814732726aaea",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://github.com/joaomatosf/jexboss",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.squire-technologies.co.uk/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Java Remote Management Interface of all versions of SVI MS Management System was discovered to contain a vulnerability due to insecure deserialization of user-supplied content, which can allow attackers to execute arbitrary code via a crafted serialized Java object."
    },
    {
      "lang": "es",
      "value": "Se ha detectado que la interfaz de administración remota de Java de todas las versiones de SVI MS Management System contiene una vulnerabilidad debida a la deserialización no segura del contenido suministrado por el usuario, que puede permitir a atacantes ejecutar código arbitrario por medio de un objeto Java serializado diseñado"
    }
  ],
  "lastModified": "2026-06-17T03:04:52.543",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:squire-technologies:svi_ms_management_system:-:*:*:*:*:*:*:*",
              "vulnerable": true,
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            }
          ],
          "operator": "OR"
        }
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  "sourceIdentifier": "cve@mitre.org"
}