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CVE-2021-24042

Estado: ModificadaCrítica (9.8)—

The calling logic for WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23, WhatsApp for iOS prior to v2.21.230, WhatsApp Business for iOS prior to v2.21.230, WhatsApp for KaiOS prior to v2.2143, WhatsApp Desktop prior to v2.2146 could have allowed an out-of-bounds write if a user makes a 1:1 call to a malicious actor.

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 (1)

Whatsapp — Whatsapp

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-24042",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-24042",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-22T17:29:44.436259Z"
        }
      }
    ],
    "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
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "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 Desktop",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "v2.2146",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "v2.2146",
              "lessThan": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Facebook",
          "product": "WhatsApp for KaiOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "v2.2143",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "v2.2143",
              "lessThan": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Facebook",
          "product": "WhatsApp Business for iOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "v2.21.230",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "v2.21.230",
              "lessThan": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Facebook",
          "product": "WhatsApp for iOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "v2.21.230",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "v2.21.230",
              "lessThan": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Facebook",
          "product": "WhatsApp Business for Android",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "v2.21.23",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "v2.21.23",
              "lessThan": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Facebook",
          "product": "WhatsApp for Android",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "v2.21.23",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "v2.21.23",
              "lessThan": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-01-04T19:15:14.603",
  "references": [
    {
      "url": "https://www.whatsapp.com/security/advisories/2021/",
      "tags": [
        "Not Applicable",
        "Vendor Advisory"
      ],
      "source": "cve-assign@fb.com"
    },
    {
      "url": "https://www.whatsapp.com/security/advisories/2021/",
      "tags": [
        "Not Applicable",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve-assign@fb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The calling logic for WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23, WhatsApp for iOS prior to v2.21.230, WhatsApp Business for iOS prior to v2.21.230, WhatsApp for KaiOS prior to v2.2143, WhatsApp Desktop prior to v2.2146 could have allowed an out-of-bounds write if a user makes a 1:1 call to a malicious actor."
    },
    {
      "lang": "es",
      "value": "La lógica de llamada de WhatsApp para Android versiones anteriores a 2.21.23, WhatsApp Business para Android versiones anteriores a 2.21.23, WhatsApp para iOS versiones anteriores a 2.21.230, WhatsApp Business para iOS versiones anteriores a 2.21.230, WhatsApp para KaiOS versiones anteriores a 2.2143, WhatsApp Desktop versiones anteriores a 2.2146, podría haber permitido una escritura fuera de límites si un usuario realiza una llamada 1:1 a un actor malicioso"
    }
  ],
  "lastModified": "2026-06-17T03:39:12.497",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:-:*",
              "vulnerable": true,
              "matchCriteriaId": "A752CDB2-ECDB-4076-95B9-3793D8DF4D80",
              "versionEndExcluding": "2.21.23"
            },
            {
              "criteria": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:business:android:*:*",
              "vulnerable": true,
              "matchCriteriaId": "39074B84-158A-4E9F-8055-D3F902E382F6",
              "versionEndExcluding": "2.21.23"
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            {
              "criteria": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:-:*",
              "vulnerable": true,
              "matchCriteriaId": "6192798B-5793-4647-8C5F-35CC44E241E6",
              "versionEndExcluding": "2.21.230"
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              "vulnerable": true,
              "matchCriteriaId": "31048698-360B-4C1F-AE74-86846F457EC2",
              "versionEndExcluding": "2.21.230"
            },
            {
              "criteria": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:kaios:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4FAD2D47-D8C2-4EA1-A681-4C9AB873DF96",
              "versionEndExcluding": "2.2143"
            },
            {
              "criteria": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:desktop:-:*:*",
              "vulnerable": true,
              "matchCriteriaId": "16927F06-8389-449B-B662-50A2ED30A3DA",
              "versionEndExcluding": "2.2146"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve-assign@fb.com"
}