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CVE-2021-31986

Estado: ModificadaMedia (6.8)—

User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage.

CVSS

Probabilidad de explotación (EPSS)

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 (4)

Axis — Axis OSAxis — Axis OS 2016Axis — Axis OS 2018Axis — Axis OS 2020

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-31986",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "HIGH",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.8,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "product-security@axis.com",
      "affectedData": [
        {
          "vendor": "Axis Communications AB",
          "product": "AXIS OS",
          "versions": [
            {
              "status": "affected",
              "version": "AXIS OS 6.40 or later"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2021-10-05T22:15:07.843",
  "references": [
    {
      "url": "https://www.axis.com/files/tech_notes/CVE-2021-31986.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@axis.com"
    },
    {
      "url": "https://www.axis.com/files/tech_notes/CVE-2021-31986.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "product-security@axis.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage."
    },
    {
      "lang": "es",
      "value": "Unos parámetros controlados por el usuario relacionados con las notificaciones SMTP no son comprobadas correctamente. Esto puede conllevar a un desbordamiento del búfer, resultando en bloqueos y filtrado de datos"
    }
  ],
  "lastModified": "2026-06-17T03:52:38.297",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "871286C1-7EC5-47F4-89D1-785E57F7F4FE",
              "versionEndExcluding": "10.7"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "E99291A7-DDA8-4E90-9A0D-D4CFC8CEA93C",
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            },
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            },
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  ],
  "sourceIdentifier": "product-security@axis.com"
}