{
  "id": "CVE-2010-3765",
  "url": "https://spydr.io/cve/CVE-2010-3765",
  "published": "2010-10-28T00:00:05.237Z",
  "modified": "2026-06-16T23:23:28.500Z",
  "score": 9.8,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "CISA ADP",
  "epss": 0.83156,
  "epss_percentile": 0.9967,
  "exploited": true,
  "kev": {
    "added": "2025-10-06",
    "due": "2025-10-27",
    "action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Unknown",
    "name": "Mozilla Multiple Products Remote Code Execution Vulnerability",
    "notes": "https://www.mozilla.org/en-US/security/advisories/mfsa2010-73 ; https://nvd.nist.gov/vuln/detail/CVE-2010-3765"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "mozilla"
  ],
  "products": [
    "mozilla firefox",
    "mozilla thunderbird",
    "mozilla seamonkey"
  ],
  "cwes": [
    "CWE-119"
  ],
  "description": "Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x before 2.0.10, when JavaScript is enabled, allows remote attackers to execute arbitrary code via vectors related to nsCSSFrameConstructor::ContentAppended, the appendChild method, incorrect index tracking, and the creation of multiple frames, which triggers memory corruption, as exploited in the wild in October 2010 by the Belmoo malware.",
  "status": "Analyzed",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://blog.mozilla.com/security/2010/10/26/critical-vulnerability-in-firefox-3-5-and-firefox-3-6/",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://isc.sans.edu/diary.html?storyid=9817",
      "tags": [
        "Press/Media Coverage"
      ]
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050233.html",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050061.html",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050077.html",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050154.html",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://norman.com/about_norman/press_center/news_archive/2010/129223/en?utm_source=twitterfeed&utm_medium=twitter",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "http://secunia.com/advisories/41761",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://secunia.com/advisories/41965",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://secunia.com/advisories/41966",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://secunia.com/advisories/41969",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://secunia.com/advisories/41975",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://secunia.com/advisories/42003",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://secunia.com/advisories/42008",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://secunia.com/advisories/42043",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://secunia.com/advisories/42867",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.556706",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://support.avaya.com/css/P8/documents/100114329",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://support.avaya.com/css/P8/documents/100114335",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.debian.org/security/2010/dsa-2124",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.exploit-db.com/exploits/15341",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "http://www.exploit-db.com/exploits/15342",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "http://www.exploit-db.com/exploits/15352",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:213",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2010-3765",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}