{
    "id": "CVE-2016-3645",
    "published": "2016-06-30 23:59:06",
    "last_modified": "2026-06-17 00:46:08",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-189",
    "description": "Integer overflow in the TNEF unpacker in the AntiVirus Decomposer engine in Symantec Advanced Threat Protection (ATP); Symantec Data Center Security:Server (SDCS:S) 6.x through 6.6 MP1; Symantec Web Gateway; Symantec Endpoint Protection (SEP) before 12.1 RU6 MP5; Symantec Endpoint Protection (SEP) for Mac; Symantec Endpoint Protection (SEP) for Linux before 12.1 RU6 MP5; Symantec Protection Engine (SPE) before 7.0.5 HF01, 7.5.x before 7.5.3 HF03, 7.5.4 before HF01, and 7.8.0 before HF01; Symantec Protection for SharePoint Servers (SPSS) 6.0.3 through 6.0.5 before 6.0.5 HF 1.5 and 6.0.6 before HF 1.6; Symantec Mail Security for Microsoft Exchange (SMSMSE) before 7.0_3966002 HF1.1 and 7.5.x before 7.5_3966008 VHF1.2; Symantec Mail Security for Domino (SMSDOM) before 8.0.9 HF1.1 and 8.1.x before 8.1.3 HF1.2; CSAPI before 10.0.4 HF01; Symantec Message Gateway (SMG) before 10.6.1-4; Symantec Message Gateway for Service Providers (SMG-SP) 10.5 before patch 254 and 10.6 before patch 253; Norton AntiVirus, Norton Security, Norton Internet Security, and Norton 360 before NGC 22.7; Norton Security for Mac before 13.0.2; Norton Power Eraser (NPE) before 5.1; and Norton Bootable Removal Tool (NBRT) before 2016.1 allows remote attackers to have an unspecified impact via crafted TNEF data.",
    "epss_score": "0.24614",
    "epss_percentile": "0.97815",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:16",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "symantec",
            "product": "advanced_threat_protection"
        },
        {
            "vendor": "symantec",
            "product": "csapi"
        },
        {
            "vendor": "symantec",
            "product": "data_center_security_server"
        },
        {
            "vendor": "symantec",
            "product": "endpoint_protection"
        },
        {
            "vendor": "symantec",
            "product": "mail_security_for_domino"
        },
        {
            "vendor": "symantec",
            "product": "mail_security_for_microsoft_exchange"
        },
        {
            "vendor": "symantec",
            "product": "message_gateway"
        },
        {
            "vendor": "symantec",
            "product": "message_gateway_for_service_providers"
        },
        {
            "vendor": "symantec",
            "product": "ngc"
        },
        {
            "vendor": "symantec",
            "product": "norton_360"
        },
        {
            "vendor": "symantec",
            "product": "norton_antivirus"
        },
        {
            "vendor": "symantec",
            "product": "norton_bootable_removal_tool"
        },
        {
            "vendor": "symantec",
            "product": "norton_internet_security"
        },
        {
            "vendor": "symantec",
            "product": "norton_power_eraser"
        },
        {
            "vendor": "symantec",
            "product": "norton_security"
        },
        {
            "vendor": "symantec",
            "product": "norton_security_with_backup"
        },
        {
            "vendor": "symantec",
            "product": "protection_engine"
        },
        {
            "vendor": "symantec",
            "product": "protection_for_sharepoint_servers"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "40035",
            "title": "Symantec AntiVirus - TNEF Decoder Integer Overflow",
            "date": "2016-06-29",
            "url": "https://www.exploit-db.com/exploits/40035"
        }
    ],
    "refs_list": [
        "http://www.securityfocus.com/bid/91439",
        "http://www.securitytracker.com/id/1036198",
        "http://www.securitytracker.com/id/1036199",
        "https://www.exploit-db.com/exploits/40035/",
        "https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20160628_00",
        "http://www.securityfocus.com/bid/91439",
        "http://www.securitytracker.com/id/1036198",
        "http://www.securitytracker.com/id/1036199",
        "https://www.exploit-db.com/exploits/40035/",
        "https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20160628_00"
    ]
}