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CVE-2016-5295

Estado: ModificadaAlta (7.8)—

Esta vulnerabilidad permite que un atacante emplee Mozilla Maintenance Service para escalar privilegios haciendo que Maintenance Service invoque a Mozilla Updater para ejecutar archivos locales maliciosos. Esta vulnerabilidad requiere acceso local al sistema y es una variante de MFSA2013-44. Nota: este problema solo afecta a sistemas operativos Windows. La vulnerabilidad afecta a Firefox en versiones anteriores a la 50.

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)

Mozilla — Firefox

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-5295",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@mozilla.org",
      "affectedData": [
        {
          "vendor": "Mozilla",
          "product": "Firefox",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "50",
              "versionType": "custom"
            }
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        }
      ]
    }
  ],
  "published": "2018-06-11T21:29:00.640",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/94337",
      "tags": [
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      "source": "security@mozilla.org"
    },
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      "url": "http://www.securitytracker.com/id/1037298",
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      "source": "security@mozilla.org"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1247239",
      "tags": [
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      "source": "security@mozilla.org"
    },
    {
      "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2013-44/",
      "tags": [
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      "source": "security@mozilla.org"
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      "url": "https://www.mozilla.org/security/advisories/mfsa2016-89/",
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      "url": "https://www.mozilla.org/security/advisories/mfsa2016-89/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "This vulnerability allows an attacker to use the Mozilla Maintenance Service to escalate privilege by having the Maintenance Service invoke the Mozilla Updater to run malicious local files. This vulnerability requires local system access and is a variant of MFSA2013-44. Note: this issue only affects Windows operating systems. This vulnerability affects Firefox < 50."
    },
    {
      "lang": "es",
      "value": "Esta vulnerabilidad permite que un atacante emplee Mozilla Maintenance Service para escalar privilegios haciendo que Maintenance Service invoque a Mozilla Updater para ejecutar archivos locales maliciosos. Esta vulnerabilidad requiere acceso local al sistema y es una variante de MFSA2013-44. Nota: este problema solo afecta a sistemas operativos Windows. La vulnerabilidad afecta a Firefox en versiones anteriores a la 50."
    }
  ],
  "lastModified": "2026-06-17T00:49:09.563",
  "configurations": [
    {
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          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "50.0"
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  "sourceIdentifier": "security@mozilla.org"
}