{
    "id": "CVE-2019-12256",
    "published": "2019-08-09 18:15:11",
    "last_modified": "2026-06-17 02:14:18",
    "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-120",
    "description": "Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the IPv4 component. There is an IPNET security vulnerability: Stack overflow in the parsing of IPv4 packets’ IP options.",
    "epss_score": "0.26629",
    "epss_percentile": "0.97967",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-03 18:17:22",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 26.6% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "belden",
            "product": "hirschmann_ees20"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_ees25"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_eesx20"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_eesx30"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_grs1020"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_grs1030"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_grs1042"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_grs1120"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_grs1130"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_grs1142"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_hios"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_msp30"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_msp32"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_rail_switch_power_lite"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_rail_switch_power_smart"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_red25"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_rsp20"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_rsp25"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_rsp30"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_rsp35"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_rspe30"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_rspe32"
        },
        {
            "vendor": "belden",
            "product": "hirschmann_rspe35"
        },
        {
            "vendor": "netapp",
            "product": "e-series_santricity_os_controller"
        },
        {
            "vendor": "siemens",
            "product": "power_meter_9410"
        },
        {
            "vendor": "siemens",
            "product": "power_meter_9410_firmware"
        },
        {
            "vendor": "siemens",
            "product": "power_meter_9810"
        },
        {
            "vendor": "siemens",
            "product": "power_meter_9810_firmware"
        },
        {
            "vendor": "siemens",
            "product": "ruggedcom_win7000"
        },
        {
            "vendor": "siemens",
            "product": "ruggedcom_win7000_firmware"
        },
        {
            "vendor": "siemens",
            "product": "ruggedcom_win7018"
        },
        {
            "vendor": "siemens",
            "product": "ruggedcom_win7018_firmware"
        },
        {
            "vendor": "siemens",
            "product": "ruggedcom_win7025"
        },
        {
            "vendor": "siemens",
            "product": "ruggedcom_win7025_firmware"
        },
        {
            "vendor": "siemens",
            "product": "ruggedcom_win7200"
        },
        {
            "vendor": "siemens",
            "product": "ruggedcom_win7200_firmware"
        },
        {
            "vendor": "siemens",
            "product": "siprotec_5"
        },
        {
            "vendor": "siemens",
            "product": "siprotec_5_firmware"
        },
        {
            "vendor": "sonicwall",
            "product": "sonicos"
        },
        {
            "vendor": "windriver",
            "product": "vxworks"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://cert-portal.siemens.com/productcert/pdf/ssa-189842.pdf",
        "https://cert-portal.siemens.com/productcert/pdf/ssa-352504.pdf",
        "https://cert-portal.siemens.com/productcert/pdf/ssa-632562.pdf",
        "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009",
        "https://security.netapp.com/advisory/ntap-20190802-0001/",
        "https://support.f5.com/csp/article/K41190253",
        "https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2019-12256",
        "https://support2.windriver.com/index.php?page=security-notices",
        "https://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11/",
        "https://cert-portal.siemens.com/productcert/pdf/ssa-189842.pdf",
        "https://cert-portal.siemens.com/productcert/pdf/ssa-352504.pdf",
        "https://cert-portal.siemens.com/productcert/pdf/ssa-632562.pdf",
        "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009",
        "https://security.netapp.com/advisory/ntap-20190802-0001/",
        "https://support.f5.com/csp/article/K41190253",
        "https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2019-12256",
        "https://support2.windriver.com/index.php?page=security-notices",
        "https://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11/"
    ]
}