Anviz CrossChex Standard Improper Verification of Source of a Communication Channel_CVE-2026-40434

{
    "lastseen": "",
    "description": "Anviz CrossChex Standard\nlacks source verification in the client/server channel, enabling TCP \npacket injection by an attacker on the same network to alter or disrupt \napplication traffic.",
    "published": "2026-04-17T19:49:28.099Z",
    "modified": "2026-04-17T20:28:02.785Z",
    "type": "cve",
    "title": "Anviz CrossChex Standard Improper Verification of Source of a Communication Channel",
    "source": "icscert",
    "references": "https://www.anviz.com/contact-us.html\nhttps://www.cisa.gov/news-events/ics-advisories/icsa-26-106-03\nhttps://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-106-03.json",
    "id": "CVE-2026-40434",
    "bulletinFamily": "",
    "cwe": [
        "CWE-940"
    ],
    "cvelist": null,
    "sourceData": "Anviz Anviz CrossChex Standard All versions",
    "sourceHref": "",
    "cvss": {
        "score": 8.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Anviz CrossChex Standard",
    "version": "All versions",
    "vendor": "Anviz",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}