FKIE_CVE-2021-24042

Vulnerability from fkie_nvd - Published: 2022-01-04 19:15 - Updated: 2025-05-22 19:15
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
cve-assign@fb.comhttps://www.whatsapp.com/security/advisories/2021/Not Applicable, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.whatsapp.com/security/advisories/2021/Not Applicable, Vendor Advisory
Impacted products
Vendor Product Version
whatsapp whatsapp *
whatsapp whatsapp *
whatsapp whatsapp *
whatsapp whatsapp *
whatsapp whatsapp *
whatsapp whatsapp *
To clipboard 

{
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              "criteria": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:-:*",
              "matchCriteriaId": "A752CDB2-ECDB-4076-95B9-3793D8DF4D80",
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            },
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          "operator": "OR"
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  "cveTags": [],
  "descriptions": [
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      "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 l\u00f3gica 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, podr\u00eda haber permitido una escritura fuera de l\u00edmites si un usuario realiza una llamada 1:1 a un actor malicioso"
    }
  ],
  "id": "CVE-2021-24042",
  "lastModified": "2025-05-22T19:15:23.703",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
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        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "type": "Primary"
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          "confidentialityImpact": "HIGH",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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  "published": "2022-01-04T19:15:14.603",
  "references": [
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      "source": "cve-assign@fb.com",
      "tags": [
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        "Vendor Advisory"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
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      "source": "cve-assign@fb.com",
      "type": "Secondary"
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  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.