CVE-2026-19748

Estado: AplazadaBaja (2.9)—

A security vulnerability has been detected in Tenda CH7, CH7G, CH10, CP3, CP3 Pro, CP7, TC3B14C, TC3B15C, TC3T14C and TC3T15C up to 20260625. Affected is the function CWebSessionManager_ParseSession of the file /user/bin/Kylin of the component Kylin Web Service. Such manipulation of the argument SESSION leads to insufficient entropy. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is told to be difficult.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Puntuación base: 2.9

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.49%
Percentil entre todas las CVEs puntuadas: 40
Fecha de la puntuación: 5/10/2026

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).

Tecnologías afectadas (10)

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

Tenda — Ch10^AI Tenda — CH7^AI Tenda — Ch7g^AI Tenda — CP3^AI Tenda — CP3 PRO^AI Tenda — CP7^AI Tenda — Tc3b14c^AI Tenda — Tc3b15c^AI Tenda — Tc3t14c^AI Tenda — Tc3t15c^AI

CWE

CWE-330, CWE-331

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-19748",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-19748",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-14T16:43:42.535144Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Secondary",
        "source": "cna@vuldb.com",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.6,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cna@vuldb.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.7,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.2
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "cna@vuldb.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 2.9,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "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"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "cna@vuldb.com",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:h:tenda:ch7:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Tenda",
          "modules": [
            "Kylin Web Service"
          ],
          "product": "CH7",
          "versions": [
            {
              "status": "affected",
              "version": "20260625"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:tenda:ch7g:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Tenda",
          "modules": [
            "Kylin Web Service"
          ],
          "product": "CH7G",
          "versions": [
            {
              "status": "affected",
              "version": "20260625"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:tenda:ch10:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Tenda",
          "modules": [
            "Kylin Web Service"
          ],
          "product": "CH10",
          "versions": [
            {
              "status": "affected",
              "version": "20260625"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:tenda:cp3:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Tenda",
          "modules": [
            "Kylin Web Service"
          ],
          "product": "CP3",
          "versions": [
            {
              "status": "affected",
              "version": "20260625"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:tenda:cp3_pro:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Tenda",
          "modules": [
            "Kylin Web Service"
          ],
          "product": "CP3 Pro",
          "versions": [
            {
              "status": "affected",
              "version": "20260625"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:tenda:cp7:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Tenda",
          "modules": [
            "Kylin Web Service"
          ],
          "product": "CP7",
          "versions": [
            {
              "status": "affected",
              "version": "20260625"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:tenda:tc3b14c:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Tenda",
          "modules": [
            "Kylin Web Service"
          ],
          "product": "TC3B14C",
          "versions": [
            {
              "status": "affected",
              "version": "20260625"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:tenda:tc3b15c:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Tenda",
          "modules": [
            "Kylin Web Service"
          ],
          "product": "TC3B15C",
          "versions": [
            {
              "status": "affected",
              "version": "20260625"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:tenda:tc3t14c:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Tenda",
          "modules": [
            "Kylin Web Service"
          ],
          "product": "TC3T14C",
          "versions": [
            {
              "status": "affected",
              "version": "20260625"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:tenda:tc3t15c:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Tenda",
          "modules": [
            "Kylin Web Service"
          ],
          "product": "TC3T15C",
          "versions": [
            {
              "status": "affected",
              "version": "20260625"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-08-13T21:17:46.343",
  "references": [
    {
      "url": "https://github.com/howitouchyou/Tenda-Smart-Camera-Vulnerability/blob/main/Tenda%20Weak%20Bypass/Tenda%20Camera%20Weak%20Session%20Authentication%20Bypass.md",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/cve/CVE-2026-19748",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/submit/868490",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/vuln/389499",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/vuln/389499/cti",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://www.tenda.com.cn/",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/howitouchyou/Tenda-Smart-Camera-Vulnerability/blob/main/Tenda%20Weak%20Bypass/Tenda%20Camera%20Weak%20Session%20Authentication%20Bypass.md",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-330"
        },
        {
          "lang": "en",
          "value": "CWE-331"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A security vulnerability has been detected in Tenda CH7, CH7G, CH10, CP3, CP3 Pro, CP7, TC3B14C, TC3B15C, TC3T14C and TC3T15C up to 20260625. Affected is the function CWebSessionManager_ParseSession of the file /user/bin/Kylin of the component Kylin Web Service. Such manipulation of the argument SESSION leads to insufficient entropy. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is told to be difficult."
    }
  ],
  "lastModified": "2026-08-14T19:09:39.140",
  "sourceIdentifier": "cna@vuldb.com"
}