CVE-2025-2521

Estado: AplazadaAlta (8.6)—

The Honeywell Experion PKS and OneWireless WDM contains a Memory Buffer vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to an Overread Buffers, which could result in improper index validation against buffer borders leading to remote code execution.

Honeywell recommends updating to the most recent version of Honeywell Experion PKS:

520.2 TCU9 HF1 and 530.1 TCU3 HF1 and OneWireless: 322.5 and 331.1.

The affected Experion PKS products are C300 PCNT02, C300 PCNT05, FIM4, FIM8, UOC, CN100, HCA, C300PM, and C200E. The Experion PKS versions affected are from 520.1 through 520.2 TCU9 and from 530 through 530 TCU3.The OneWireless WDM affected versions are 322.1 through 322.4 and 330.1 through 330.3.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Puntuación base: 8.6

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.47%
Percentil entre todas las CVEs puntuadas: 38
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access95 %
Impacto principalT1059 Command and Scripting Interpreterexecution90 %
Impacto secundarioT1068 Exploitation for Privilege Escalationprivilege escalation75 %

Buffer overflow remoto (CWE-119) sin autenticación (PR:N) ni interacción (UI:N) en aplicación expuesta → T1190. RCE explícito en descripción → T1059 primario. Potencial escalada de privilegios a root/admin en sistemas SCADA → T1068 secundario.

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 Management Execution Prevention Application Isolation and Sandboxing Exploit Protection Update Software Vulnerability Scanning

Tecnologías afectadas (2)

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

Honeywell — Experion PKS^AI Honeywell — Onewireless WDM^AI

CWE

CWE-119

Referencias

https://process.honeywell.com/

JSON original (NVD)

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{
  "id": "CVE-2025-2521",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-2521",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2025-07-10T20:33:41.946048Z"
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    "cvssMetricV31": [
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        "cvssData": {
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          "baseScore": 8.6,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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        "exploitabilityScore": 3.9
      }
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  },
  "affected": [
    {
      "source": "psirt@honeywell.com",
      "affectedData": [
        {
          "vendor": "Honeywell",
          "product": "C300 PCNT02",
          "versions": [
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              "version": "520.1",
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              "lessThanOrEqual": "520.2 TCU9"
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            {
              "status": "affected",
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          ],
          "platforms": [
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        {
          "vendor": "Honeywell",
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            {
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          ],
          "platforms": [
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          "defaultStatus": "unaffected"
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        {
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          "platforms": [
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          "defaultStatus": "unaffected"
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          "product": "CN100",
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            },
            {
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              "version": "530",
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              "lessThanOrEqual": "530 TCU3"
            }
          ],
          "platforms": [
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          "defaultStatus": "unaffected"
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        {
          "vendor": "Honeywell",
          "product": "HCA",
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            }
          ],
          "platforms": [
            "Experion PKS"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Honeywell",
          "product": "C300PM",
          "versions": [
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              "version": "520.1",
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              "lessThanOrEqual": "520.2 TCU9"
            },
            {
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              "version": "530",
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              "lessThanOrEqual": "530 TCU3"
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          "platforms": [
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        {
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          "product": "C200E",
          "versions": [
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              "version": "520.1",
              "versionType": "semver",
              "lessThanOrEqual": "520.2 TCU9"
            },
            {
              "status": "affected",
              "version": "530",
              "versionType": "semver",
              "lessThanOrEqual": "530 TCU3"
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          ],
          "platforms": [
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          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Honeywell",
          "product": "Wireless Device Manager",
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              "version": "322.1",
              "versionType": "semver",
              "lessThanOrEqual": "322.4"
            },
            {
              "status": "affected",
              "version": "330.1",
              "versionType": "semver",
              "lessThanOrEqual": "330.3"
            }
          ],
          "platforms": [
            "OneWireless"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-07-10T21:15:27.200",
  "references": [
    {
      "url": "https://process.honeywell.com/",
      "source": "psirt@honeywell.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@honeywell.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Honeywell Experion PKS and OneWireless WDM contains a Memory Buffer vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to an Overread Buffers, which could result in improper index validation against buffer borders leading to remote code execution.\n\nHoneywell recommends updating to the most recent version of Honeywell Experion PKS:\n\n520.2 TCU9 HF1 and 530.1 TCU3 HF1 and OneWireless: 322.5 and 331.1.\n\n\nThe affected Experion PKS products are C300 PCNT02, C300 PCNT05, FIM4, FIM8, UOC, CN100, HCA, C300PM, and C200E.  The Experion PKS versions affected are from 520.1 through 520.2 TCU9 and from 530 through 530 TCU3.The OneWireless WDM affected versions are 322.1 through 322.4 and 330.1 through 330.3."
    },
    {
      "lang": "es",
      "value": "Honeywell Experion PKS y OneWireless WDM presentan una vulnerabilidad de búfer de memoria en el componente Control Data Access (CDA). Un atacante podría explotar esta vulnerabilidad, provocando una sobrelectura de búferes, lo que podría resultar en una validación incorrecta del índice con respecto a los límites del búfer, lo que podría provocar la ejecución remota de código. Honeywell recomienda actualizar a la versión más reciente de Honeywell Experion PKS: 520.2 TCU9 HF1 y 530.1 TCU3 HF1, y OneWireless: 322.5 y 331.1. Los productos Experion PKS afectados son C300 PCNT02, C300 PCNT05, FIM4, FIM8, UOC, CN100, HCA, C300PM y C200E. Las versiones de Experion PKS afectadas son de 520.1 a 520.2 TCU9 y de 530 a 530 TCU3. Las versiones de OneWireless WDM afectadas son de 322.1 a 322.4 y de 330.1 a 330.3."
    }
  ],
  "lastModified": "2026-06-17T09:07:06.390",
  "sourceIdentifier": "psirt@honeywell.com"
}