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CVE-2017-2439

Status: ModifiedHigh (7.1)—

An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves the "FontParser" component. It allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a crafted font file.

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 (4)

Apple — Iphone OSApple — MAC OS XApple — TvosApple — Watchos

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2017-2439",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.1,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "product-security@apple.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
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    }
  ],
  "published": "2017-04-02T01:59:02.183",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/97137",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1038138",
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/HT207601",
      "tags": [
        "Vendor Advisory"
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      "source": "product-security@apple.com"
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      "tags": [
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      "source": "product-security@apple.com"
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      "source": "product-security@apple.com"
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      "tags": [
        "Vendor Advisory"
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      "source": "product-security@apple.com"
    },
    {
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      "tags": [
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        "VDB Entry"
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      "url": "http://www.securitytracker.com/id/1038138",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://support.apple.com/HT207601",
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "https://support.apple.com/HT207617",
      "tags": [
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves the \"FontParser\" component. It allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a crafted font file."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en ciertos productos Apple. iOS en versiones anteriores a 10.3 está afectado. macOS en versiones anteriores a 10.12.4 está afectado. tvOS en versiones anteriores a 10.2 está afectado. watchOS en versiones anteriores a 3.2 está afectado. El problema involucra al componente \"FontParser\". Esto permite a atacantes remotos obtener información sensible o provocar una denegación de servicio (lectura fuera de límites y caída de la aplicación) a través de un archivo de fuente manipulado."
    }
  ],
  "lastModified": "2026-06-17T01:16:12.260",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "A705829E-76A8-4AA8-8D82-037E4E8A52FC",
              "versionEndIncluding": "10.2.1"
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              "vulnerable": true,
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              "versionEndIncluding": "10.12.3"
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              "versionEndIncluding": "10.1.1"
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              "vulnerable": true,
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              "versionEndIncluding": "3.1.3"
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  ],
  "sourceIdentifier": "product-security@apple.com"
}