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CVE-2021-4286

Estado: ModificadaAlta (7.5)—
Gravedad7.5Alta · CVSS 3.1
Probabilidad de explotación0.74 %mayor que el 54 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

Una vulnerabilidad fue encontrada en cocagne pysrp hasta 1.0.16 y clasificada como problemática. Este problema afecta la función calculate_x del archivo srp/_ctsrp.py. La manipulación conduce a la exposición de la información a través de la discrepancia. La actualización a la versión 1.0.17 puede solucionar este problema. El nombre del parche es dba52642f5e95d3da7af1780561213ee6053195f. Se recomienda actualizar el componente afectado. El identificador asociado de esta vulnerabilidad es VDB-216875.

CVSS

Puntuación base
7.5
Versión
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.74 %
Percentil entre todas las CVEs puntuadas
54
Fecha de la puntuación
21/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Pysrp Project — Pysrp

CWE

Referencias

Mostrar las 10 referencias

JSON original (NVD)

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{
  "id": "CVE-2021-4286",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-4286",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-11T16:46:15.696359Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cna@vuldb.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 2.6,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 1.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cna@vuldb.com",
      "affectedData": [
        {
          "vendor": "cocagne",
          "product": "pysrp",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.0"
            },
            {
              "status": "affected",
              "version": "1.0.1"
            },
            {
              "status": "affected",
              "version": "1.0.2"
            },
            {
              "status": "affected",
              "version": "1.0.3"
            },
            {
              "status": "affected",
              "version": "1.0.4"
            },
            {
              "status": "affected",
              "version": "1.0.5"
            },
            {
              "status": "affected",
              "version": "1.0.6"
            },
            {
              "status": "affected",
              "version": "1.0.7"
            },
            {
              "status": "affected",
              "version": "1.0.8"
            },
            {
              "status": "affected",
              "version": "1.0.9"
            },
            {
              "status": "affected",
              "version": "1.0.10"
            },
            {
              "status": "affected",
              "version": "1.0.11"
            },
            {
              "status": "affected",
              "version": "1.0.12"
            },
            {
              "status": "affected",
              "version": "1.0.13"
            },
            {
              "status": "affected",
              "version": "1.0.14"
            },
            {
              "status": "affected",
              "version": "1.0.15"
            },
            {
              "status": "affected",
              "version": "1.0.16"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-12-27T11:15:10.557",
  "references": [
    {
      "url": "https://github.com/cocagne/pysrp/commit/dba52642f5e95d3da7af1780561213ee6053195f",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/cocagne/pysrp/pull/43",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/cocagne/pysrp/releases/tag/1.0.17",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/?ctiid.216875",
      "tags": [
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      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/?id.216875",
      "tags": [
        "Third Party Advisory"
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      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/cocagne/pysrp/commit/dba52642f5e95d3da7af1780561213ee6053195f",
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        "Third Party Advisory"
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    {
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      "tags": [
        "Patch",
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/cocagne/pysrp/releases/tag/1.0.17",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://vuldb.com/?ctiid.216875",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://vuldb.com/?id.216875",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability, which was classified as problematic, has been found in cocagne pysrp up to 1.0.16. This issue affects the function calculate_x of the file srp/_ctsrp.py. The manipulation leads to information exposure through discrepancy. Upgrading to version 1.0.17 is able to address this issue. The name of the patch is dba52642f5e95d3da7af1780561213ee6053195f. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216875."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad fue encontrada en cocagne pysrp hasta 1.0.16 y clasificada como problemática. Este problema afecta la función calculate_x del archivo srp/_ctsrp.py. La manipulación conduce a la exposición de la información a través de la discrepancia. La actualización a la versión 1.0.17 puede solucionar este problema. El nombre del parche es dba52642f5e95d3da7af1780561213ee6053195f. Se recomienda actualizar el componente afectado. El identificador asociado de esta vulnerabilidad es VDB-216875."
    }
  ],
  "lastModified": "2026-06-17T04:19:25.573",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pysrp_project:pysrp:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F2121A2F-3095-4E37-B00A-2D6F1AC7DE71",
              "versionEndExcluding": "1.0.17"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cna@vuldb.com"
}