CVE-2026-67866

{
  "id": "CVE-2026-67866",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-05T23:16:53.887",
  "lastModified": "2026-10-24T16:10:00.153",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer Overflow vulnerability in Systerel S2OPC 1.7.3 allows a remote attacker to cause a denial of service via the LockedStaMac_ProcessMsg_DeleteMonitoredItemsResponse and SOPC_StaMac_NewDeleteMonitoredItems in the client wrapper DeleteMonitoredItems path"
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de desbordamiento de búfer en Systerel S2OPC 1.7.3 permite a un atacante remoto causar una denegación de servicio a través de LockedStaMac_ProcessMsg_DeleteMonitoredItemsResponse y SOPC_StaMac_NewDeleteMonitoredItems en la ruta DeleteMonitoredItems del wrapper del cliente."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-06T12:44:28.825720Z",
          "id": "CVE-2026-67866",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/gff-cw/information/issues/16",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/systerel/S2OPC/blob/master/samples/ClientServer/client_wrapper/examples/subscribe.c",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/systerel/S2OPC/blob/master/src/ClientServer/frontend/client_wrapper/internal/state_machine.c",
      "source": "[email protected]"
    },
    {
      "url": "https://gitlab.com/systerel/S2OPC/-/work_items/1780",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/gff-cw/information/issues/16",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}