CVE-2026-5039

{
  "id": "CVE-2026-5039",
  "sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630",
  "published": "2026-04-23T18:16:30.377",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "TP-Link TL-WR841N v13 uses DES-CBC encryption in the TDDPv2 debug protocol with a cryptographic key derived from default web management credentials, making the key predictable if device is left in default configuration. A network-adjacent attacker can exploit this weakness to gain unauthorized access to the protocol, read debug data, modify certain device configuration values, and trigger device reboot, resulting in loss of integrity and a denial-of-service condition."
    },
    {
      "lang": "es",
      "value": "El TP-Link TL-WR841N v13 utiliza cifrado DES-CBC en el protocolo de depuración TDDPv2 con una clave criptográfica derivada de las credenciales predeterminadas de gestión web, lo que hace que la clave sea predecible si el dispositivo se deja en la configuración predeterminada. Un atacante adyacente a la red puede explotar esta debilidad para obtener acceso no autorizado al protocolo, leer datos de depuración, modificar ciertos valores de configuración del dispositivo y activar el reinicio del dispositivo, lo que resulta en una pérdida de integridad y una condición de denegación de servicio."
    }
  ],
  "affected": [
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "affectedData": [
        {
          "vendor": "TP-Link Systems Inc.",
          "product": "TL-WL841N v13",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "lessThan": "0.9.1 Build 20231120 Rel.62366",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
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          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "attackVector": "ADJACENT",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
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          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
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          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
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          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
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          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
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        "ssvcData": {
          "timestamp": "2026-04-23T17:38:11.142339Z",
          "id": "CVE-2026-5039",
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            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
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              "technicalImpact": "partial"
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          "role": "CISA Coordinator",
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      "description": [
        {
          "lang": "en",
          "value": "CWE-1394"
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  "references": [
    {
      "url": "https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmware",
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