{
    "id": "CVE-2010-3765",
    "published": "2010-10-28 00:00:05",
    "last_modified": "2026-06-16 23:23:28",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "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.",
    "epss_score": "0.83156",
    "epss_percentile": "0.99669",
    "kev": 1,
    "kev_due": "2025-10-27",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:17:52",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2025-10-27."
    },
    "products": [
        {
            "vendor": "mozilla",
            "product": "firefox"
        },
        {
            "vendor": "mozilla",
            "product": "seamonkey"
        },
        {
            "vendor": "mozilla",
            "product": "thunderbird"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2010-3765",
        "date_added": "2025-10-06",
        "due_date": "2025-10-27",
        "vendor": "Mozilla",
        "product": "Multiple Products",
        "name": "Mozilla Multiple Products Remote Code Execution Vulnerability",
        "ransomware": 0
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "16509",
            "title": "Mozilla Firefox - Interleaving 'document.write' / 'appendChild' (Metasploit)",
            "date": "2011-02-22",
            "url": "https://www.exploit-db.com/exploits/16509"
        },
        {
            "source": "exploit-db",
            "ref_id": "15352",
            "title": "Mozilla Firefox 3.6.8 < 3.6.11 - Interleaving 'document.write' / 'appendChild' Remote Overflow",
            "date": "2010-10-29",
            "url": "https://www.exploit-db.com/exploits/15352"
        },
        {
            "source": "exploit-db",
            "ref_id": "15341",
            "title": "Mozilla Firefox - Interleaving 'document.write' / 'appendChild' Denial of Service",
            "date": "2010-10-28",
            "url": "https://www.exploit-db.com/exploits/15341"
        },
        {
            "source": "exploit-db",
            "ref_id": "15342",
            "title": "Mozilla Firefox - Simplified Memory Corruption (PoC)",
            "date": "2010-10-28",
            "url": "https://www.exploit-db.com/exploits/15342"
        }
    ],
    "refs_list": [
        "http://blog.mozilla.com/security/2010/10/26/critical-vulnerability-in-firefox-3-5-and-firefox-3-6/",
        "http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox",
        "http://isc.sans.edu/diary.html?storyid=9817",
        "http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050233.html",
        "http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050061.html",
        "http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050077.html",
        "http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050154.html",
        "http://norman.com/about_norman/press_center/news_archive/2010/129223/en?utm_source=twitterfeed&utm_medium=twitter",
        "http://secunia.com/advisories/41761",
        "http://secunia.com/advisories/41965",
        "http://secunia.com/advisories/41966",
        "http://secunia.com/advisories/41969",
        "http://secunia.com/advisories/41975",
        "http://secunia.com/advisories/42003",
        "http://secunia.com/advisories/42008",
        "http://secunia.com/advisories/42043",
        "http://secunia.com/advisories/42867",
        "http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.556706",
        "http://support.avaya.com/css/P8/documents/100114329",
        "http://support.avaya.com/css/P8/documents/100114335",
        "http://www.debian.org/security/2010/dsa-2124",
        "http://www.exploit-db.com/exploits/15341",
        "http://www.exploit-db.com/exploits/15342",
        "http://www.exploit-db.com/exploits/15352",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2010:213"
    ]
}