FKIE_CVE-2024-7520

Vulnerability from fkie_nvd - Published: 2024-08-06 13:15 - Updated: 2026-06-17 08:20
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
A type confusion bug in WebAssembly could be leveraged by an attacker to potentially achieve code execution. This vulnerability affects Firefox < 129, Firefox ESR < 128.1, and Thunderbird < 128.1.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1903041Issue Tracking, Permissions Required
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2024-33/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2024-35/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2024-37/Vendor Advisory
Impacted products
Vendor Product Version
mozilla firefox *
mozilla firefox_esr *
mozilla thunderbird *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "129",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Firefox ESR",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "128.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "128.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@mozilla.org"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:mozilla:firefox_esr:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "firefox_esr",
          "vendor": "mozilla",
          "versions": [
            {
              "lessThan": "128.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:mozilla:firefox:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "firefox",
          "vendor": "mozilla",
          "versions": [
            {
              "lessThan": "129",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:mozilla:thunderbird:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "thunderbird",
          "vendor": "mozilla",
          "versions": [
            {
              "lessThan": "128.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "12C9ABF7-3B44-4C24-B152-488DCF9E2D39",
              "versionEndExcluding": "129.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "AD0FE4E3-38C2-432E-A475-FF47DD4C2486",
              "versionEndExcluding": "128.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5E69B2E1-07FA-4AFC-9C18-81F0BF10C64B",
              "versionEndExcluding": "128.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A type confusion bug in WebAssembly could be leveraged by an attacker to potentially achieve code execution. This vulnerability affects Firefox \u003c 129, Firefox ESR \u003c 128.1, and Thunderbird \u003c 128.1."
    },
    {
      "lang": "es",
      "value": "Un atacante podr\u00eda aprovechar un error de confusi\u00f3n de tipos en WebAssembly para lograr potencialmente la ejecuci\u00f3n del c\u00f3digo. Esta vulnerabilidad afecta a Firefox \u0026lt; 129, Firefox ESR \u0026lt; 128.1 y Thunderbird \u0026lt; 128.1."
    }
  ],
  "id": "CVE-2024-7520",
  "lastModified": "2026-06-17T08:20:21.920",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-7520",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-08-06T15:23:43.922347Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-08-06T13:15:57.107",
  "references": [
    {
      "source": "security@mozilla.org",
      "tags": [
        "Issue Tracking",
        "Permissions Required"
      ],
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1903041"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2024-33/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2024-35/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
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      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2024-37/"
    }
  ],
  "sourceIdentifier": "security@mozilla.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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