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CVE-2018-15715

Status: ModifiedCritical (9.8)—

Zoom clients on Windows (before version 4.1.34814.1119), Mac OS (before version 4.1.34801.1116), and Linux (2.4.129780.0915 and below) are vulnerable to unauthorized message processing. A remote unauthenticated attacker can spoof UDP messages from a meeting attendee or Zoom server in order to invoke functionality in the target client. This allows the attacker to remove attendees from meetings, spoof messages from users, or hijack shared screens.

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 (1)

Zoom — Zoom

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-15715",
  "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
      }
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    "cvssMetricV30": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "baseScore": 9.8,
          "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",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "vulnreport@tenable.com",
      "affectedData": [
        {
          "vendor": "Zoom",
          "product": "Zoom",
          "versions": [
            {
              "status": "affected",
              "version": "Zoom on Windows before version 4.1.34814.1119, Zoom on Mac OS before version 4.1.34801.1116, Zoom on Linux version 2.4.129780.0915 and below."
            }
          ]
        }
      ]
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  ],
  "published": "2018-11-30T20:29:00.223",
  "references": [
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      "url": "https://www.tenable.com/security/research/tra-2018-40",
      "tags": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "vulnreport@tenable.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Zoom clients on Windows (before version 4.1.34814.1119), Mac OS (before version 4.1.34801.1116), and Linux (2.4.129780.0915 and below) are vulnerable to unauthorized message processing. A remote unauthenticated attacker can spoof UDP messages from a meeting attendee or Zoom server in order to invoke functionality in the target client. This allows the attacker to remove attendees from meetings, spoof messages from users, or hijack shared screens."
    },
    {
      "lang": "es",
      "value": "Los clientes de Zoom en Windows (antes de la versión 4.1.34814.1119), Mac OS (antes de la versión 4.1.34801.1116) y Linux (2.4.129780.0915 y anteriores) son vulnerables al procesamiento no autorizado de imágenes. Un atacante remoto no autenticado puede suplantar los mensajes UDP de un asistente a la reunión o de un servidor de Zoom para invocar funcionalidades en el cliente objetivo. Esto permite que el atacante elimine asistentes de las reuniones, suplante mensajes de los usuarios o secuestre pantallas compartidas."
    }
  ],
  "lastModified": "2026-06-17T01:42:59.433",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "matchCriteriaId": "BE8776DC-C5C4-4B38-837C-E33504BDB193",
              "versionEndIncluding": "2.4.129780.0915"
            },
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  "sourceIdentifier": "vulnreport@tenable.com"
}