Kofax Capture 6.0.0.0 Unauthenticated File Read/Write & SMB Coercion via .NET Remoting_CVE-2026-23751

{
    "lastseen": "",
    "description": "Kofax Capture, now referred to as Tungsten Capture, version 6.0.0.0 (other versions may be affected) exposes a deprecated .NET Remoting HTTP channel on port 2424 via the Ascent Capture Service that is accessible without authentication and uses a default, publicly known endpoint identifier. An unauthenticated remote attacker can exploit .NET Remoting object unmarshalling techniques to instantiate a remote System.Net.WebClient object and read arbitrary files from the server filesystem, write attacker-controlled files to the server, or coerce NTLMv2 authentication to an attacker-controlled host, enabling sensitive credential disclosure, denial of service, remote code execution, or lateral movement depending on service account privileges and network environment.",
    "published": "2026-04-23T14:46:12.638Z",
    "modified": "2026-04-23T14:46:12.638Z",
    "type": "cve",
    "title": "Kofax Capture 6.0.0.0 Unauthenticated File Read/Write & SMB Coercion via .NET Remoting",
    "source": "VulnCheck",
    "references": "https://gist.github.com/VAMorales/3888941d6e5efdd4b2e673e999f68ca2\nhttps://docshield.tungstenautomation.com/Portal/Products/en_US/KC/11.1.0-40hy9nfk91/KC.htm\nhttps://www.vulncheck.com/advisories/kofax-capture-unauthenticated-file-read-write-smb-coercion-via-net-remoting",
    "id": "CVE-2026-23751",
    "bulletinFamily": "",
    "cwe": [
        "CWE-306",
        "CWE-441"
    ],
    "cvelist": null,
    "sourceData": "Tungsten Automation Kofax Capture 6.0.0.0",
    "sourceHref": "",
    "cvss": {
        "score": 9.3,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "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": "Kofax Capture",
    "version": "6.0.0.0",
    "vendor": "Tungsten Automation",
    "ai_description": "Unauthenticated remote attacker can exploit .NET Remoting object unmarshalling techniques to read arbitrary files, write attacker-controlled files, or coerce NTLMv2 authentication.",
    "ai_severity": "Critical",
    "ai_vendor": "Tungsten Automation",
    "ai_product": "Kofax Capture",
    "ai_version": "6.0.0.0",
    "ai_score": 9.3
}