CVE-2026-62351

{
  "id": "CVE-2026-62351",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-15T19:18:37.947",
  "lastModified": "2026-10-24T21:10:00.130",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, source/libs/transport/src/transComm.c transDecompressMsg() read STransCompMsg.contLen when pHead->comp == 1 without first validating that the RPC packet contained the 8-byte STransCompMsg structure, causing an unauthenticated out-of-bounds read, uncontrolled allocation, integer underflow, and server crash. This issue is fixed in version 3.4.1.15."
    },
    {
      "lang": "es",
      "value": "TDengine es una base de datos de series temporales optimizada para dispositivos de internet de las cosas. Antes de la versión 3.4.1.15, source/libs/transport/src/transComm.c transDecompressMsg() leía STransCompMsg.contLen cuando pHead  ->  comp == 1 sin validar primero que el paquete RPC contenía la estructura STransCompMsg de 8 bytes, causando una lectura fuera de límites no autenticada, asignación descontrolada, desbordamiento negativo de enteros y un fallo del servidor. Este problema se ha corregido en la versión 3.4.1.15."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "taosdata",
          "product": "TDengine",
          "versions": [
            {
              "version": "< 3.4.1.15",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "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": "2026-07-15T19:33:36.374979Z",
          "id": "CVE-2026-62351",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/taosdata/TDengine/security/advisories/GHSA-8pc4-p252-f5m7",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/taosdata/TDengine/security/advisories/GHSA-8pc4-p252-f5m7",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}