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CVE-2018-6350

Status: ModifiedCritical (9.8)—

An out-of-bounds read was possible in WhatsApp due to incorrect parsing of RTP extension headers. This issue affects WhatsApp for Android prior to 2.18.276, WhatsApp Business for Android prior to 2.18.99, WhatsApp for iOS prior to 2.18.100.6, WhatsApp Business for iOS prior to 2.18.100.2, and WhatsApp for Windows Phone prior to 2.18.224.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-6350",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "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,
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    "cvssMetricV30": [
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        "cvssData": {
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 3.9
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  "affected": [
    {
      "source": "cve-assign@fb.com",
      "affectedData": [
        {
          "vendor": "Facebook",
          "product": "WhatsApp for Android",
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              "version": "2.18.276"
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          "product": "WhatsApp Business for Android",
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              "versionType": "custom"
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          "vendor": "Facebook",
          "product": "WhatsApp for iOS",
          "versions": [
            {
              "status": "affected",
              "version": "2.18.100.6"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.18.100.6",
              "versionType": "custom"
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        {
          "vendor": "Facebook",
          "product": "WhatsApp Business for iOS",
          "versions": [
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              "status": "affected",
              "version": "2.18.100.2"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.18.100.2",
              "versionType": "custom"
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        },
        {
          "vendor": "Facebook",
          "product": "WhatsApp for Windows Phone",
          "versions": [
            {
              "status": "affected",
              "version": "2.18.224"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.18.224",
              "versionType": "custom"
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  ],
  "published": "2019-06-14T17:29:02.283",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/108803",
      "source": "cve-assign@fb.com"
    },
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      "url": "https://www.facebook.com/security/advisories/cve-2018-6350/",
      "tags": [
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    },
    {
      "url": "http://www.securityfocus.com/bid/108803",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.facebook.com/security/advisories/cve-2018-6350/",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve-assign@fb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
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      "source": "nvd@nist.gov",
      "description": [
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  "descriptions": [
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      "value": "An out-of-bounds read was possible in WhatsApp due to incorrect parsing of RTP extension headers. This issue affects WhatsApp for Android prior to 2.18.276, WhatsApp Business for Android prior to 2.18.99, WhatsApp for iOS prior to 2.18.100.6, WhatsApp Business for iOS prior to 2.18.100.2, and WhatsApp for Windows Phone prior to 2.18.224."
    },
    {
      "lang": "es",
      "value": "Fue posible una lectura fuera de límites en WhatsApp debido a un análisis incorrecto de los encabezados de extensión RTP. Este problema afecta a WhatsApp para Android anterior a versión 2.18.276, WhatsApp Business para Android anterior a versión 2.18.99, WhatsApp para iOS anterior a versión 2.18.100.6, WhatsApp Business para iOS anterior a versión 2.18.100.2 y WhatsApp para Windows Phone anterior a versión 2.18. 224."
    }
  ],
  "lastModified": "2026-06-17T02:01:43.323",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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  "sourceIdentifier": "cve-assign@fb.com"
}