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CVE-2026-23751

Estado: Pendiente de análisisCrítica (9.3)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:N/PR:N/UI:N indica acceso remoto sin autenticación (T1190). El acceso a archivos del servidor (T1005) y coerción NTLM (T1187) son impactos primarios; RCE potencial vía deserialización .NET es T1059.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementFilter Network TrafficVulnerability ScanningRestrict Web-Based ContentPassword PoliciesNetwork Segmentation

Tecnologías afectadas (2)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Kofax — CaptureAIKofax — Tungsten CaptureAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-23751",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-25T01:20:25.743838Z"
        }
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    "cvssMetricV31": [
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          "integrityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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      }
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    "cvssMetricV40": [
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          "version": "4.0",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "modifiedUserInteraction": "NOT_DEFINED",
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          "subConfidentialityImpact": "NONE",
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          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "affected": [
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      "affectedData": [
        {
          "vendor": "Tungsten Automation",
          "product": "Tungsten Capture (formerly Kofax Capture)",
          "versions": [
            {
              "status": "affected",
              "version": "6.0.0.0",
              "versionType": "custom"
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  "published": "2026-04-23T16:16:24.463",
  "references": [
    {
      "url": "https://docshield.tungstenautomation.com/Portal/Products/en_US/KC/11.1.0-40hy9nfk91/KC.htm",
      "source": "disclosure@vulncheck.com"
    },
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      "url": "https://gist.github.com/VAMorales/3888941d6e5efdd4b2e673e999f68ca2",
      "source": "disclosure@vulncheck.com"
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    {
      "url": "https://www.vulncheck.com/advisories/kofax-capture-unauthenticated-file-read-write-smb-coercion-via-net-remoting",
      "source": "disclosure@vulncheck.com"
    }
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  "vulnStatus": "Awaiting Analysis",
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      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
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          "lang": "en",
          "value": "CWE-441"
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      ]
    }
  ],
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    {
      "lang": "en",
      "value": "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."
    }
  ],
  "lastModified": "2026-06-17T10:22:02.970",
  "sourceIdentifier": "disclosure@vulncheck.com"
}