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CVE-2020-1909

Estado: ModificadaCrítica (9.8)—

A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to v2.20.111 could have resulted in memory corruption, crashes and potentially code execution. This could have happened only if several events occurred together in sequence, including receiving an animated sticker while placing a WhatsApp video call on hold.

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 (2)

Whatsapp — WhatsappWhatsapp — Whatsapp Business

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2020-1909",
  "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",
          "version": "3.1",
          "baseScore": 9.8,
          "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": [
    {
      "source": "cve-assign@fb.com",
      "affectedData": [
        {
          "vendor": "Facebook",
          "product": "WhatsApp Business for iOS",
          "versions": [
            {
              "status": "affected",
              "version": "2.20.111"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.20.111",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "2.20.81",
              "lessThan": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Facebook",
          "product": "WhatsApp for iOS",
          "versions": [
            {
              "status": "affected",
              "version": "2.20.111"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.20.111",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "2.20.81",
              "lessThan": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-11-03T20:15:12.470",
  "references": [
    {
      "url": "https://www.whatsapp.com/security/advisories/2020/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve-assign@fb.com"
    },
    {
      "url": "https://www.whatsapp.com/security/advisories/2020/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve-assign@fb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to v2.20.111 could have resulted in memory corruption, crashes and potentially code execution. This could have happened only if several events occurred together in sequence, including receiving an animated sticker while placing a WhatsApp video call on hold."
    },
    {
      "lang": "es",
      "value": "Un uso de la memoria previamente liberada en una biblioteca de registro en WhatsApp para iOS anterior a versión v2.20.111 y WhatsApp Business para iOS anterior a versión v2.20.111, podría haber resultado en una corrupción de la memoria, fallos y potencialmente una ejecución de código. Esto podría haber sucedido solo si varios eventos ocurrieron juntos en secuencia, incluyendo la recepción de una pegatina animada mientras se coloca una videollamada de WhatsApp en espera"
    }
  ],
  "lastModified": "2026-06-17T03:02:35.833",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:*",
              "vulnerable": true,
              "matchCriteriaId": "94A5904E-1921-4B50-93DD-1D82CBC1DF9B",
              "versionEndExcluding": "2.20.111"
            },
            {
              "criteria": "cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1B569A24-2305-4924-9AB7-2EB6F1B27685",
              "versionEndExcluding": "2.20.111"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve-assign@fb.com"
}